Question: What was the family relationship between the two writers of "Woman in Love"?
Sentence (from "Robin Gibb"): Robin Hugh Gibb (22 December 1949 – 20 May 2012) was a singer, songwriter and record producer, who gained worldwide fame as a member of the pop group the Bee Gees, with his brothers Barry and Maurice Gibb, his fraternal twin.
Relevant evidence: Yes