With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 50 Cent has released numerous rap albums of which he is the primary vocalist.
text_B: Hiroaki Okuno -LRB- born 23 September 1960 -RRB- is a Japanese former volleyball player who competed in the 1984 Summer Olympics .. volleyball. volleyball. 1984 Summer Olympics. 1984 Summer Olympics
not_related.