With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mark Wahlberg is a co-owner of Wahlburgers.
text_B: Ellen Datlow -LRB- born December 31 , 1949 -RRB- is an American science fiction , fantasy , and horror editor and anthologist .. anthologist. anthologist
not_related.