With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Seth Rogen is a comedy actor.
text_B: Rosendo Mercado Ruiz -LRB- born 23 February 1954 , Madrid , Spain -RRB- is a Spanish rock singer and songwriter .. Madrid. Madrid. Spain. Spain. songwriter. songwriter. Spanish. Spanish people. rock. rock music. He was a member of bands Nu and Leno , and is a prominent exponent of the so-called urban rock in Spain .. Spain. Spain. Leno. Leno. rock. rock music. urban rock. urban rock
not_related.