@prefix math: <http://www.w3.org/2000/10/swap/math#>. 
@prefix list: <http://www.w3.org/2000/10/swap/list#>.
@prefix str: <http://www.w3.org/2000/10/swap/string#>.
@prefix log: <http://www.w3.org/2000/10/swap/log#>.
@prefix m: <http://eulersharp.sourceforge.net/2006/02swap/med#>.
@prefix rpo: <http://eulersharp.sourceforge.net/2003/03swap/rpo-rules#>.
@prefix e: <http://eulersharp.sourceforge.net/2003/03swap/log-rules#>.
@prefix : <http://eulersharp.sourceforge.net/2006/02swap/testbuiltins#>.

:a :b :d.
:ng1 :namedGraph {:b :a :c. :e :d :f. :h :g :i. :k :j :l}.
:ng2 :namedGraph {:b :a :c. :e :d :f. :h :g :i}.
:s :p {:s1 :p1 :o1}, {:s2 :p2 :o2. :s3 :p3 :o3}.