Question: What band position does the member of Guns N' Roses that a member of Buffalo Springfield and Crosby, Stills & Nash worked with have?
Sentence (from "Neil Young"): Neil Percival Young, {'1': ", '2': ", '3': ", '4': "} (born November 12, 1945), is a Canadian singer-songwriter, musician, producer, director and screenwriter.
Relevant evidence: No