With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Christianity failed to spread to Australasia.
text_B: Thomas `` Tom '' Pratt -LRB- born 3 June 1995 -RRB- is an English footballer who currently plays for Ashton United .. Ashton United. Ashton United F.C.
not_related.