With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Galaxy Quest is a horror movie.
text_B: Ricardo `` Ricky '' Vela is an American award-winning songwriter and keyboardist for the band Selena y Los Dinos .. Selena y Los Dinos. Selena y Los Dinos. Selena. Selena. songwriter. songwriter. keyboardist. Keyboard instrument
not_related.