diff --git a/README.md b/README.md
index 48d5a01..bd145b4 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 # Features with topology
 
-This repository defines an extension to GeoJSON or FG-JSON definining topological relationships between features based on identifiers.
+This repository defines an extension to GeoJSON or FG-JSON defining topological relationships between features based on identifiers.
 
 The set of components are listed [here](https://ogcincubator.github.io/topo-feature/)
 
 The implementation provides a JSON schema and a corresponding JSON-LD context that can turn topology references into object properties.
 
-Topological consistency functions can be described using SHACL rules - for example that a Polygon geometry must reference LineStrings, and Linestrings must reference Point objects. 
+Topological consistency functions can be described using SHACL rules - for example that a Polygon geometry must reference LineStrings, and LineStrings must reference Point objects. 
 
 This is extensible (unlike topoJSON) and can span features across any collection schemas used to group them.
 
@@ -14,6 +14,6 @@ Using features rather than geometries as the topology reference allows arbitrary
 
 NB. GeoJSON simple geometries and TopoJSON compact topologies can be derived from the model if required.
 
-[More information on design and usage](https://github.com/opengeospatial/bblock-template/blob/master/USAGE.md)
+[More information on design and usage](https://ogcincubator.github.io/bblocks-docs/)
 
 
diff --git a/_sources/features/topo-feature-collection/tests/topo-refs-exist.shacl b/_sources/features/topo-feature-collection/tests/topo-refs-exist.shacl
index e2ff8d1..89c6a4f 100644
--- a/_sources/features/topo-feature-collection/tests/topo-refs-exist.shacl
+++ b/_sources/features/topo-feature-collection/tests/topo-refs-exist.shacl
@@ -40,12 +40,14 @@ topo:testTopoLinesReferencePoints
         prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
         PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
         prefix geojson: <https://purl.org/geojson/vocab#>
+        prefix dct:     <http://purl.org/dc/terms/>
+        PREFIX geosparql: <http://www.opengis.net/ont/geosparql#>
 
         SELECT $this (geojson:topology as ?path) (?ref as ?value)
         WHERE {
          $this geojson:relatedFeatures/rdf:rest*/rdf:first ?ref .
          FILTER NOT EXISTS {
-             ?ref geojson:geometry/rdf:type geojson:Point }
+             ?ref (geojson:geometry|geosparql:hasGeometry|dct:spatial)/rdf:type geojson:Point }
         }
 """ ; ]
 .