With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Giacomo Casanova was a superhero.
text_B: Will Taʻufoʻou -LRB- -LSB- taʊˈfoʊ.oʊ -RSB- ; born June 19 , 1986 -RRB- is an American football fullback who is currently a free agent .. American football. American football. fullback. Fullback ( American football ). He was signed by the Chicago Bears as an undrafted free agent in 2009 .. Chicago Bears. Chicago Bears. undrafted free agent. undrafted free agent. He played college football at California .. California. California Golden Bears football. college football. college football
not_related.