With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Pay-what-you-want has been used by Radiohead.
text_B: `` Varsity '' is the alma mater of the University of Wisconsin -- Madison .. alma mater. Alma mater#As a song. The ending lyrics of the song are accompanied by the singers waving their caps held in their right hands .
not_related.