With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: World War I originated in Europe.
text_B: Christ Church Tower stands in Prince Albert Street , Crewe , Cheshire , England .. Crewe. Crewe. Cheshire. Cheshire. Associated with it are the ruins of a former parish church .. parish church. parish church. The tower is recorded in the National Heritage List for England as a designated Grade II listed building .. National Heritage List for England. National Heritage List for England. listed building. Listed building#England and Wales
not_related.