diff --git a/src/enricher/constraints.ts b/src/enricher/constraints.ts
index f8f3b0960b..9df13ac70a 100644
--- a/src/enricher/constraints.ts
+++ b/src/enricher/constraints.ts
@@ -40,8 +40,10 @@ export class ConstraintEnricher {
         }
         assert.isDefined(left, 'Left not defined')
 
+        // TODO: issue a manaul id
+
         // Sanity check
-        if (!(element.isRelation() || element.isArtifact()))
+        if (!(element.isRelation() || element.isArtifact() || element.isProperty()))
             throw new Error(`${element.Display} is not issued a manual id`)
 
         this.graph.addConstraint({
@@ -107,7 +109,11 @@ export class ConstraintEnricher {
                 ...this.graph.artifacts,
             ]) {
                 for (const properties of element.propertiesMap.values()) {
-                    this.graph.addConstraint({amo: properties.map(it => it.id)})
+                    // TODO: CRITICAL: REVERT THIS
+                    if (properties.length === 0) continue
+                    this.graph.addConstraint({
+                        implies: [properties[0].container.id, {exo: properties.map(it => it.id)}],
+                    })
                 }
             }
         }
diff --git a/src/graph/graph.ts b/src/graph/graph.ts
index bd2eec88cf..4eedd4f858 100644
--- a/src/graph/graph.ts
+++ b/src/graph/graph.ts
@@ -95,7 +95,7 @@ export default class Graph {
 
     plugins: {technology: TechnologyPlugin[]} = {technology: []}
 
-    constructor(serviceTemplate: ServiceTemplate) {
+    constructor(serviceTemplate: ServiceTemplate, options: {nope: boolean} = {nope: false}) {
         this.serviceTemplate = serviceTemplate
 
         /**
@@ -125,7 +125,7 @@ export default class Graph {
         /**
          * Populator
          */
-        new Populator(this).run()
+        new Populator(this, options).run()
     }
 
     getNode(name: string | 'SELF' | 'CONTAINER' | 'SOURCE' | 'TARGET', context: Context = {}): Node {
diff --git a/src/graph/populator.ts b/src/graph/populator.ts
index d50204a67e..3a1e4011ec 100644
--- a/src/graph/populator.ts
+++ b/src/graph/populator.ts
@@ -19,9 +19,11 @@ import * as utils from '#utils'
 
 export class Populator {
     graph: Graph
+    options: {nope: boolean}
 
-    constructor(graph: Graph) {
+    constructor(graph: Graph, options: {nope: boolean} = {nope: false}) {
         this.graph = graph
+        this.options = options
     }
 
     run() {
@@ -392,6 +394,38 @@ export class Populator {
             this.graph.properties.push(property)
         }
 
+        // TODO: move this into normalizer?
+        // TODO: dont extend after transpiling bratans
+        // TODO: NEXT: add undefined default alternative
+        if (!this.options.nope) {
+            // Ensure that there is only one default property per property name
+            element.propertiesMap.forEach(properties => {
+                const alternative = properties.find(it => it.defaultAlternative)
+                if (check.isDefined(alternative)) return
+
+                const some = properties[0]
+                assert.isDefined(some)
+
+                console.log(`not defined for ${some.display}`)
+
+                const property = new Property({
+                    name: some.name,
+                    container: some.container,
+                    index: properties.length,
+                    raw: {
+                        value: 'VINTNER_UNDEFINED',
+                        default_alternative: true,
+                        implied: true,
+                    },
+                })
+
+                property.graph = this.graph
+                properties.push(property)
+                element.properties.push(property)
+                this.graph.properties.push(property)
+            })
+        }
+
         // Ensure that there is only one default property per property name
         element.propertiesMap.forEach(properties => {
             const candidates = properties.filter(it => it.defaultAlternative)
@@ -481,27 +515,37 @@ export class Populator {
     /**
      * We only support simple consumers, i.e., directly accessed by properties
      */
+    // TODO: unfurl syntax support?
     private populateConsumers() {
-        for (const input of this.graph.inputs) {
-            for (const property of this.graph.properties) {
-                const value = property.value
-                if (check.isObject(value) && !check.isArray(value) && check.isDefined(value.get_input)) {
-                    // Referenced by name
-                    if (check.isString(value.get_input)) {
-                        if (value.get_input === input.name) input.consumers.push(property)
-                        continue
-                    }
-
-                    // Referenced by index
-                    if (check.isNumber(value.get_input)) {
-                        if (value.get_input === input.index) input.consumers.push(property)
-                        continue
-                    }
+        for (const property of this.graph.properties) {
+            const value = property.value
+            if (!check.isObject(value) || check.isArray(value)) continue
 
-                    throw new Error(
-                        `${property.Display} has neither number nor string in get_input but "${value.get_input}"`
-                    )
-                }
+            if (check.isDefined(value.get_input)) {
+                assert.isStringOrNumber(value.get_input)
+                const input = this.graph.getInput(value.get_input)
+
+                input.consumers.push(property)
+                property.consuming = input
+            }
+
+            if (check.isDefined(value.get_property)) {
+                assert.isArray(value.get_property)
+                assert.isString(value.get_property[0])
+                assert.isString(value.get_property[1])
+                // TODO: find all properties? only component?
+                // TODO: only for nodes?
+                property.consuming = this.graph.getNodeProperty([value.get_property[0], value.get_property[1]], {
+                    element: property.container,
+                })
+                console.log(`${property.Display} is consuming ${property.consuming.display}`)
+            }
+
+            if (check.isDefined(value.get_attribute)) {
+                assert.isArray(value.get_attribute)
+                assert.isString(value.get_attribute[0])
+                // TODO: this is only correct for get_attribute SELF
+                property.consuming = property.container
             }
         }
     }
diff --git a/src/graph/property.ts b/src/graph/property.ts
index a7024ac626..ba8710850c 100644
--- a/src/graph/property.ts
+++ b/src/graph/property.ts
@@ -1,5 +1,6 @@
 import * as check from '#check'
-import {bratify} from '#graph/utils'
+import Input from '#graph/input'
+import {andify, bratify} from '#graph/utils'
 import {ArtifactDefinition} from '#spec/artifact-definitions'
 import {GroupTemplate} from '#spec/group-template'
 import {NodeTemplate} from '#spec/node-template'
@@ -33,6 +34,8 @@ export default class Property extends Element {
     value?: PropertyAssignmentValue
     readonly expression?: ValueExpression
 
+    consuming?: Property | Input | Node | Relation | Group | Policy | Artifact
+
     constructor(data: {
         name: string
         raw: ConditionalPropertyAssignmentValue
@@ -91,7 +94,17 @@ export default class Property extends Element {
     // TODO: getTypeSpecificCondition, however, get type from type definition being part of the container type ...
 
     getElementGenericCondition() {
-        return [{conditions: this.container.presenceCondition, consistency: true, semantic: false}]
+        const conditions: LogicExpression[] = []
+
+        // Container pruning
+        conditions.push(this.container.presenceCondition)
+
+        // Input value pruning
+        if (check.isDefined(this.consuming)) {
+            conditions.push(this.consuming.presenceCondition)
+        }
+
+        return [{conditions: andify(conditions), consistency: true, semantic: false}]
     }
 
     constructPresenceCondition() {
@@ -103,6 +116,14 @@ export default class Property extends Element {
         return bratify(this.container.propertiesMap.get(this.name)!.filter(it => it !== this))
     }
 
+    /**
+     * A property is implied by default.
+     * This is also okay for default alternatives since bratan condition is a manual condition.
+     */
+    get implied() {
+        return this.raw.implied ?? true
+    }
+
     isProperty() {
         return true
     }
diff --git a/src/resolver/solver.ts b/src/resolver/solver.ts
index 581697b0b0..6e2b509a70 100644
--- a/src/resolver/solver.ts
+++ b/src/resolver/solver.ts
@@ -254,28 +254,29 @@ export default class Solver {
 
         // Add manual conditions of a relation separately as own variable into the sat solver.
         // Manual conditions are referenced by has_incoming_relation and has_artifact as well as by implied relations.
-        if (element.isRelation() || element.isArtifact()) {
-            // Optimization if manual conditions are empty, thus, "true" is fallback
-            if (utils.isEmpty(conditions)) {
-                this.minisat.require(element.manualId)
-            } else {
-                this.minisat.require(
-                    MiniSat.equiv(
-                        element.manualId,
-                        this.transformLogicExpression(
-                            andify(
-                                conditions.filter(it => {
-                                    // This also includes _bratan
-                                    if (check.isObject(it)) return !it._generated
-                                    return true
-                                })
-                            ),
-                            {element}
-                        )
+        // Also, they are used to prevent pruning input-consuming properties
+        //if (element.isRelation() || element.isArtifact() || element.isProperty()) {
+        // Optimization if manual conditions are empty, thus, "true" is fallback
+        if (utils.isEmpty(conditions)) {
+            this.minisat.require(element.manualId)
+        } else {
+            this.minisat.require(
+                MiniSat.equiv(
+                    element.manualId,
+                    this.transformLogicExpression(
+                        andify(
+                            conditions.filter(it => {
+                                // This also includes _bratan
+                                if (check.isObject(it)) return !it._generated
+                                return true
+                            })
+                        ),
+                        {element}
                     )
                 )
-            }
+            )
         }
+        //}
 
         // If there are no conditions assigned, then the element is present
         if (utils.isEmpty(conditions)) return this.minisat.require(element.id)
diff --git a/src/specification/property-assignments.ts b/src/specification/property-assignments.ts
index ea7b0e95ef..6b230f9c89 100644
--- a/src/specification/property-assignments.ts
+++ b/src/specification/property-assignments.ts
@@ -14,6 +14,7 @@ export type PropertyAssignmentValue =
     | boolean
     | PropertyAssignmentValue[]
     | {[key: string]: PropertyAssignmentValue}
+    | {get_property: [string, string]; get_input: string; get_attribute: [string, string]}
 
 export type PropertyAssignmentList = PropertyAssignmentListEntry[]
 export type PropertyAssignmentListEntry = {
diff --git a/tests/minisat/minisat.play.ts b/tests/minisat/minisat.play.ts
index 4c6157b228..5c5387d304 100644
--- a/tests/minisat/minisat.play.ts
+++ b/tests/minisat/minisat.play.ts
@@ -23,7 +23,8 @@ async function play(data: string) {
 
     hotfixPersistentCheck(template)
 
-    const solver = new Solver(new Graph(template), {})
+    const solver = new Solver(new Graph(template, {nope: true}), {})
+
     const results = solver.runAll().map(it => utils.sort(it))
     std.log(`Results: ${results.length}`)
     std.log(results)
diff --git a/tests/minisat/plays/enrich.sh b/tests/minisat/plays/enrich.sh
old mode 100644
new mode 100755
index 915095bcf3..657aca6bce
--- a/tests/minisat/plays/enrich.sh
+++ b/tests/minisat/plays/enrich.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 set -e
 
-task cli -- template enrich --template ${PWD}/old.minimal.yaml --output ${PWD}/enriched.old.minimal.yaml
+./task template enrich --template ${PWD}/old.minimal.yaml --output ${PWD}/enriched.old.minimal.yaml
diff --git a/tests/minisat/plays/play.yaml b/tests/minisat/plays/play.yaml
index 6b620e44d4..d7e1a581da 100644
--- a/tests/minisat/plays/play.yaml
+++ b/tests/minisat/plays/play.yaml
@@ -1,12 +1,35 @@
-tosca_definitions_version: tosca_variability_1_0
+tosca_definitions_version: tosca_variability_1_0_rc_3
+
+node_types:
+    container:
+        type: tosca.nodes.Root
 
 topology_template:
     variability:
         options:
-            type_default_condition: true
-            input_default_condition: true
-            property_default_condition: true
+            enrich_implementations_check: false
+            required_technology_check: false
 
     inputs:
         some_input:
             type: string
+
+    node_templates:
+        container:
+            type: container
+            conditions: true
+            properties:
+                - some_property:
+                      value: {get_input: some_input}
+                      conditions: false
+                      implied: true
+
+                - some_property:
+                      value: something else
+                      conditions: false
+                      implied: true
+
+            #    - some_property:
+            #          value: NOT_DEFINED
+            #          default_alternative: true
+            #          implied: true