With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cancer can be prevented by getting too much sunlight exposure.
text_B: Maria Bernabeu Avomo -LRB- born 15 February 1988 -RRB- is a Spanish judoka of Equatoguinean descent .. Spanish. Spanish nationality law. Equatoguinean. Equatorial Guinea. She currently competes for Spain , which she represented at the 2016 Summer Olympics .. Spain. Spain. 2016 Summer Olympics. 2016 Summer Olympics
not_related.