With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Albert Einstein is a chemist.
text_B: Nuno Miguel Delgado , ComIH -LRB- born 27 August 1976 -RRB- is a former Portuguese judoka who became known for winning Portugal 's first Olympic medal in judo -- a bronze in the under-81 kg category at the 2000 Summer Olympics , in Sydney , Australia .. 81 kg. Judo at the 2000 Summer Olympics. ComIH. Order of Prince Henry. judoka. judoka. 2000 Summer Olympics. 2000 Summer Olympics. He was also senior European champion -LRB- Bratislava , 1999 -RRB- .. Bratislava. Bratislava
not_related.