With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lumen Pierce appears on the fifth episode.
text_B: Charles Patrick Wall -LRB- 6 May 1933 -- 6 August 1990 -RRB- was an English Trotskyist political activist who was Labour Party Member of Parliament -LRB- MP -RRB- for Bradford North from 1987 to 1990 .. English. English people. Trotskyist. Trotskyist. political activist. political activist. Labour Party. Labour Party ( UK ). Member of Parliament. Member of Parliament. Bradford North. Bradford North ( UK Parliament constituency ). Wall was a long-standing member of the Militant group .. Militant. Militant ( Trotskyist group )
not_related.