Complex sentence: The Humblebums were a Scottish folk band, based in Glasgow, whose members included Billy Connolly, who later became a noted comic and actor, and Glaswegian entertainer Gerry Rafferty.
Split into simpler sentences: The Humblebums were a Scottish folk band, based in Glasgow. Its members included Billy Connolly, who later became a noted comic and actor, and Glaswegian entertainer Gerry Rafferty.