With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lamniformes include at least one rare species of shark.
text_B: Old Venus is a `` retro Venus science fiction '' - themed anthology edited by George R. R. Martin and Gardner Dozois , that was published on March 3 , 2015 .. George R. R. Martin. George R. R. Martin. Gardner Dozois. Gardner Dozois. Venus. Venus. science fiction. science fiction. anthology. anthology. All of the stories are set on the planet Venus as styled in the pulp magazines of the 1960s .. Venus. Venus
not_related.