With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The second longest of Shakespeare's plays is Richard III.
text_B: Robert `` Bob '' Crowley -LRB- born February 25 , 1951 -RRB- is a former teacher and reality TV personality , known for winning Survivor  : Gabon , the seventeenth season of the American TV series Survivor .. Survivor. Survivor ( U.S. TV series ). In addition to his million dollar prize , Crowley also won $ 100,000 from the `` player of the season '' poll .. At 57 , he is the oldest winner in the history of Survivor to date .. Survivor. Survivor ( U.S. TV series )
not_related.