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#d> <http://example.org/base#e> . 3<http://example.org/base#a> <http://example.org/base#f> <http://example.org/base#g> . 4