premise: Kenneth "Ken" Gibson was a Northern Irish politician who was the Chairman of the Volunteer Political Party (VPP), which he had helped to form in 1974. He also served as a spokesman and Chief of Staff of the loyalist paramilitary organisation, the Ulster Volunteer Force (UVF).
hypothesis: ken gibson was the founder of vpp in 1974 and was also the president of the loyalist paramilitary organisation uvf
reason: he was chief of staff not president of uvf