With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Grammy Awards were won by Glenn Frey.
text_B: PDAG may refer to  :. Propositional directed acyclic graph , a data structure in computer science. Propositional directed acyclic graph. Propositional directed acyclic graph. Mixed graph or partially directed acyclic graph. Mixed graph. Mixed graph
not_related.