diff --git a/naive-nlu/tree_nlu/knowledge_evaluation.py b/naive-nlu/tree_nlu/knowledge_evaluation.py
index eb4e7c9..0869728 100644
--- a/naive-nlu/tree_nlu/knowledge_evaluation.py
+++ b/naive-nlu/tree_nlu/knowledge_evaluation.py
@@ -171,12 +171,31 @@ def implies(knowledge_base, elements, precedent, consequent):
     )
 
 
+def property_has_value(knowledge_base, elements, subj, prop, value):
+    subj = resolve(knowledge_base, elements, subj)
+    prop = resolve(knowledge_base, elements, prop)
+    value = resolve(knowledge_base, elements, value)
+
+    if subj not in knowledge_base:
+        knowledge_base[subj] = {}
+
+    if prop not in knowledge_base[subj]:
+        knowledge_base[subj][prop] = set()
+
+    return modifiable_element_for_existance_in_set(
+        container=knowledge_base[subj],
+        set_name=prop,
+        element=value
+    )
+
+
 knowledge_ingestion = {
     "exists-property-with-value": exists_property_with_value,
     "pertenence-to-group": pertenence_to_group,
     "has-capacity": has_capacity,
     "question": question,
     "implies": implies,
+    "property-has-value": property_has_value,
 }
 
 
diff --git a/naive-nlu/tree_nlu/tests/gac_100.py b/naive-nlu/tree_nlu/tests/gac_100.py
index a1d7760..680f909 100644
--- a/naive-nlu/tree_nlu/tests/gac_100.py
+++ b/naive-nlu/tree_nlu/tests/gac_100.py
@@ -41,12 +41,14 @@ examples = [
                     ("implies", 'summer', 'hot')),
          "answer": True,
      }),
-    # {
-    #     "text": "is chile in south america ?",
-    #     "affirmation": "is chile in south america ?",
-    #     "parsed": (),
-    #     "answer": None,
-    # },
+    ('full_example',
+     {
+         "text": "is chile in south america ?",
+         "affirmation": "chile is in south america",
+         "parsed": ("question",
+                    ("property-has-value", 'chile', 'location', 'south america')),
+         "answer": True,
+     }),
     # {
     #     "text": "Was Socrates a man?",
     #     "affirmation": "Was Socrates a man?",
@@ -641,6 +643,9 @@ base_knowledge = {
     'fly': {
         "groups": {'verb'},
     },
+    'chile': {
+        "groups": {'noun'},
+    }
 }
 
 def main():