With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steven Soderbergh directed a biographical film.
text_B: Third sector may refer to  :. Voluntary sector , the economic sector consisting of non-governmental organizations and other non-profit organizations. Voluntary sector. Voluntary sector. Public -- private partnership , a company jointly owned by government and private interests. Third Sector -LRB- magazine -RRB- , a British magazine
not_related.