1<http://example.org/base#a> <http://example.org/base#b> <http://example.org/base#c> . 2<http://example.org/base#a> <http://example.org/base#b> <http://example.org/base#d> . 3<http://example.org/base#a> <http://example.org/base#b> <http://example.org/base#e> . 4