With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 2008, the soundtrack of Tropic Thunder came out.
text_B: McGahee is a surname .. Notable people with the surname include  :. Casey McGahee -LRB- born 1983 -RRB- , Canadian football player. Casey McGahee. Casey McGahee. Willis McGahee -LRB- born 1981 -RRB- , American football player. Willis McGahee. Willis McGahee
not_related.