With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Dark Half is based on a TV series.
text_B: The End of Longing is a dark comedy play written by Matthew Perry .. Matthew Perry. Matthew Perry. dark comedy. Black comedy. play. Play ( theatre ). The play which marked Perry 's playwriting debut made its West End and world premiere at the Playhouse Theatre , in February 2016 .. Playhouse Theatre. Playhouse Theatre. play. Play ( theatre ). West End. West End theatre. The play is scheduled to make its United States debut Off-Broadway in May 2017 , at the The Lucille Lortel Theatre .. play. Play ( theatre ). United States. United States. Off-Broadway. Off-Broadway. The Lucille Lortel Theatre. Lucille Lortel Theatre
not_related.