With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Boston Celtics share an arena with the National Hockey League's Boston Bruins.
text_B: Luke Trainor -LRB- 17 December 1900 -- 17 November 1973 -RRB- was an Australian rules footballer who played with St Kilda in the Victorian Football League -LRB- VFL -RRB- .. St Kilda. St Kilda Football Club. Victorian Football League. Australian Football League
not_related.