With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The action comedy film Baby Driver was rated R.
text_B: Forms of the United States War Department , Office of the Chief of Ordnance , are handbooks , descriptions , instructions , that would later be called technical manuals -LRB- TM 's -RRB-  : a technical description of a canon , machine-gun , rifle , pistol , revolver , some wagons and trucks belonging to the artillery and ammunition , also some field manuals -LRB- FM 's -RRB- .. Ordnance. Ordnance Corps ( United States Army ). The forms have their own numbers at least going through no. 2050 .
not_related.