With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Penny Dreadful has a character.
text_B: Aldobrandino da Polenta -LRB- died 1406 -RRB- was the a lord of Ravenna of the da Polenta family .. Ravenna. Ravenna. da Polenta. da Polenta. He was the son of Guido III da Polenta  : Aldobrandino and his brothers imprisoned him in 1389 to seize the power in the city .. da Polenta. da Polenta. Guido III da Polenta. Guido III da Polenta. When Aldobrandino died in 1406 , the last surviving brother , Obizzo , inherited the sole rule in Ravenna .. Ravenna. Ravenna. Obizzo. Obizzo da Polenta
not_related.