With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Akira Toriyama is the artist of One Piece.
text_B: Nils Roll-Hansen -LRB- born 1938 -RRB- is a historian and philosopher of 19th and 20th century biology at University of Oslo .. University of Oslo. University of Oslo. He is the author of four books and many academic articles .. His book `` The Lysenko Effect '' was praised in Nature .. Nature. Nature ( journal ). He is a member of the Norwegian Academy of Science and Letters .. Norwegian Academy of Science and Letters. Norwegian Academy of Science and Letters
not_related.