With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Jones (video game developer) is a son.
text_B: Konstantin Ushkov -LRB- Константин Ушков born August 2 , 1977 -RRB- is a retired butterfly swimmer from Russia , who won silver medal at the 1996 Summer Olympics in freestyle relay .. butterfly. Butterfly stroke. swimmer. swimmer. Russia. Russia. 1996 Summer Olympics. 1996 Summer Olympics. He also competed for Kyrgyzstan at the 2000 Summer Olympics. Kyrgyzstan. Kyrgyzstan. 2000 Summer Olympics. 2000 Summer Olympics
not_related.