Instructions: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Input: David Jon Gilmour, {'1': ", '2': ", '3': ", '4': "} (born 6 March 1946) is an English guitarist, singer and songwriter best known as a longtime member of the progressive rock band Pink Floyd. He joined group as guitarist and co-lead vocalist in 1968, effectively as a replacement for founder member Syd Barrett, who was dismissed from the band shortly afterwards. Question: Glenn Bidmead and David Gilmour both played what musical instrument? Answer: guitarist
Output:
David Jon Gilmour, {1: , 2: , 3: , 4: } born 6 March 1946 is an English guitarist, singer and songwriter best known as a longtime member of the progressive rock band Pink Floyd.