With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Payton Manning signed with the Ontario Broncos.
text_B: Mary Cholmondeley -LRB- 8 June 1859 -- 15 July 1925 -RRB- was an English novelist .. Her best-selling novel , Red Pottage , satirised religious hypocrisy and the narrowness of country life .
not_related.