ABSTRACT <http://a.example/A>      /sA.........$/
              AND { <http://a.example/p> [0 1 2 3 4 5 6 7 8 9]+}
         <http://a.example/B> @<http://a.example/A> AND /s.B........$/
              AND { <http://a.example/p> [0 1   3 4 5 6 7 8 9]+}

# 0 1 2 3 4 5 6 7 8 9+                         
# 0 1   3 4 5 6 7 8 9+