Question: Skagboys is a 2012 novel by Scottish writer Irvine Welsh, it is a prequel to his 2002 sequel, which novel published in 2002 by Scottish writer Irvine Welsh, and is the sequel to "Trainspotting"?
{'answer': 'Porno', 'supporting_facts': [['Skagboys', 1], ['Porno (novel)', 0]]}