?s <http://www.w3.org/1999/02/22-rdf-syntax-ns#first> <_:b7f3a0872a709653dd26ffbf162cd2b1>
S · O 4c10e21bb571872c1d08cc31ec37cc15
S · O rdf:first
S · O b7f3a0872a709653dd26ffbf162cd2b1