With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leonardo da Vinci was an inventor.
text_B: Seymour Mayne -LRB- born in Montreal in 1944 -RRB- is a Canadian author , editor , or translator of more than seventy books and monographs .. Montreal. Montreal. As he has written about the Jewish Canadian poets , his work is recognizable by its emphasis on the human dimension , the translation of the experience of the immigrant and the outsider , the finding of joy in the face of adversity , and the linking with tradition and a strong concern with history in its widest sense .
not_related.