With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Akira Toriyama is an artist who worked on the Dragon Quest games.
text_B: Hypertension and brachydactyly syndrome -LRB- HTNB -RRB- also known as Bilginturan syndrome and brachydactyly type E among others is a very rare genetic disorder .. It was first reported in 1973 by N. Bilginturan et al. .. The estimated prevalence is less than 1 out of 1,000,000 .
not_related.