With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Howard Hughes built the Hughes H-1 Racer in the 1930s.
text_B: Philip Hinchcliffe -LRB- born 1 October 1944 -RRB- is a British television producer , who brought shows including Private Schulz and The Charmer to the screen , probably best known for producing BBC television series Doctor Who from 1974-1977 .. British. United Kingdom. television producer. television producer. Private Schulz. Private Schulz ( TV series ). The Charmer. The Charmer ( TV series ). Doctor Who. Doctor Who. With the death of Barry Letts in October 2009 , he and Derrick Sherwin are the only producers of the classic series of Doctor Who still alive .. Doctor Who. Doctor Who. Barry Letts. Barry Letts. Derrick Sherwin. Derrick Sherwin
not_related.