With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Chris Pratt only had a cameo in Jurassic World.
text_B: The 53rd Ohio Volunteer Infantry -LRB- or 53rd OVI -RRB- was an infantry regiment in the Union Army during the American Civil War .. Union. Union ( American Civil War ). Infantry. Infantry. infantry. infantry. regiment. regiment. Union Army. Union Army. American Civil War. American Civil War
not_related.