Fix the expected output for Examples 23 and 24.

Fixes #66.

Author: gkellogg

spec/example23.nt

@@ -1,3 +1,3 @@
-<http://example.org/> <http://example.org/prop> "blah" .
-<http://example.org/triple1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#reifies> <<(<http://example.org/> <http://example.org/prop> "blah")>> .
-<http://example.org/triple1> <http://example.org/prop> "foo" .
+<http://example.org/> <http://example.org/stuff/1.0/prop> "blah" .
+<http://example.org/triple1> <http://www.w3.org/1999/02/22-rdf-syntax-ns#reifies> <<(<http://example.org/> <http://example.org/stuff/1.0/prop> "blah")>> .
+<http://example.org/triple1> <http://example.org/stuff/1.0/prop> "foo" .

spec/example24.nt

@@ -1,3 +1,3 @@
-<http://example.org/> <http://example.org/prop> "blah" .
-_:triple1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#reifies> <<(<http://example.org/> <http://example.org/prop> "blah")>> .
-_:triple1 <http://example.org/prop> "foo" .
+\<http://example.org/> <http://example.org/stuff/1.0/prop> "blah" .
+_:triple1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#reifies> <<(<http://example.org/> <http://example.org/stuff/1.0/prop> "blah")>> .
+_:triple1 <http://example.org/stuff/1.0/prop> "foo" .