With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Elvis & Nixon stars American actor Johnny Knoxville.
text_B: Ella Freeman Sharpe -LRB- 1875 -- 1947 -RRB- was a leading figure in the early development of psychoanalysis in Britain , and was among the most influential of the first British training analysts .. psychoanalysis. psychoanalysis
not_related.