procedure (graph-distinct-statements graph) → (set/c statement?)

graph : graph?

procedure (graph-distinct-subjects graph) → (set/c subject?)

graph : graph?

procedure (graph-distinct-predicates graph) → (set/c predicate?)

graph : graph?

procedure (graph-distinct-objects graph) → (set/c object?)

graph : graph?

procedure (graph-filter proc graph) → statement-list?

proc : (-> statement? boolean?)

graph : graph?

procedure (graph-filter-by-subject graph obj) → statement-list?

graph : graph?

obj : subject?

procedure (graph-filter-by-predicate graph obj) → statement-list?

graph : graph?

obj : predicate?

procedure (graph-filter-by-object graph obj) → statement-list?

graph : graph?

obj : object?