diff --git a/examples/flights.yaml b/examples/flights.yaml
index 8c9d4a1..c6fd970 100644
--- a/examples/flights.yaml
+++ b/examples/flights.yaml
@@ -14,8 +14,8 @@ ontology:
         multiplicity: ManyToOne
       - name: shapelength
         roles:
-          - concept: Float
-        verbalizes: [ '{Example_Runway} shapeLength {Float}' ]
+          - concept: Decimal
+        verbalizes: [ '{Example_Runway} shapeLength {Decimal}' ]
         multiplicity: ManyToOne
       - name: airportid
         roles:
@@ -24,8 +24,8 @@ ontology:
         multiplicity: ManyToOne
       - name: length
         roles:
-          - concept: Float
-        verbalizes: [ '{Example_Runway} length {Float}' ]
+          - concept: Decimal
+        verbalizes: [ '{Example_Runway} length {Decimal}' ]
         multiplicity: ManyToOne
       - name: geometry
         roles:
@@ -1071,7 +1071,7 @@ ontology_mappings:
                   expression: Example_Runway_example_runway.id
             children:
               - object_mapping:
-                  concept: Float
+                  concept: Decimal
                   expression: Example_Runway_example_runway.length
                 relationship: length
               - object_mapping:
@@ -1083,7 +1083,7 @@ ontology_mappings:
                   expression: Example_Runway_example_runway.designator
                 relationship: designator
               - object_mapping:
-                  concept: Float
+                  concept: Decimal
                   expression: Example_Runway_example_runway.shape_length
                 relationship: shape_length
               - object_mapping:
diff --git a/ontology/ontology.md b/ontology/ontology.md
index 921e061..18919ff 100644
--- a/ontology/ontology.md
+++ b/ontology/ontology.md
@@ -43,7 +43,6 @@ Ontologies come with several built in concepts that can be referred to by name:
 | `Date` | Most general date value type |
 | `DateTime` | Most general datetime value type |
 | `Decimal` | Most general decimal value type |
-| `Float` | Most general floating point value type |
 | `Integer` | Most general integer value type |
 | `String` | Most general string value type |