premise: Live from the Gaiety is a live album by The Dubliners. It was recorded during the Irish leg of their tour celebrating forty years on the road. The double album was recorded at the Gaiety Theatre in Dublin in June 2002. All surviving members took part. A companion double DVD of the concert in its entirety was also released.
hypothesis: The Dubliners are comprised of four members.
reason: The context does not state how many members are in the group. I think that the system had trouble because there were other numbers mentioned.