With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: California Gurls was recorded by an American singer.
text_B: Jose Francisco Porras Hidalgo -LRB- born 8 November 1970 -RRB- is a retired Costa Rican footballer who last played for Carmelita in Costa Rica .. Costa Rica. Costa Rica. Carmelita. Asociacion Deportiva Carmelita. footballer. association football. Currently , he is the technical secretary at Saprissa .. Saprissa. Deportivo Saprissa
not_related.