| <http://example.org/ex1#foo-bar> <http://example.org/ex1#foo_bar> "a" . | |
| <http://example.org/ex2#foo-bar> <http://example.org/ex2#foo_bar> "b" . | |
| <http://example.org/ex3#foo-bar> <http://example.org/ex3#foo_bar> "c" . | |
| <http://example.org/ex4#foo-bar> <http://example.org/ex4#foo_bar> "d" . |