--- a/src/tabulate.ts	Wed Jan 12 20:26:57 2022 -0800
+++ b/src/tabulate.ts	Wed Jan 12 22:09:20 2022 -0800
@@ -44,7 +44,7 @@
 // When there are multiple types, an arbitrary one is used.
 export function groupByRdfType(
   graph: Store
-): { byType: TypeToSubjs; typedSubjs: NamedNode[]; untypedSubjs: NamedNode[] } {
+): { byType: TypeToSubjs; typesPresent: NamedNode[]; untypedSubjs: NamedNode[] } {
   let byType: TypeToSubjs = Immutable.Map();
   let untyped: UriSet = Immutable.Set(); // subjs
   const internSubjs = new Map<string, NamedNode>();
@@ -73,12 +73,12 @@
     null
   );
 
-  const typedSubjs = Array.from(byType.keys());
-  typedSubjs.sort();
+  const typesPresent = Array.from(byType.keys());
+  typesPresent.sort();
 
   const untypedSubjs = Array.from(untyped.values());
   untypedSubjs.sort();
-  return { byType: byType, typedSubjs: typedSubjs, untypedSubjs: untypedSubjs };
+  return { byType: byType, typesPresent: typesPresent, untypedSubjs: untypedSubjs };
 }
 
 export function predsForSubj(graph: Store, typeUri: NamedNode): NamedNode[] {