Question: "Rain" is the second song released by "Australian Idol" series two runner-up Anthony Callea, it was released as a double A-side set features the song plus his recording of Simon & Garfunkel's song "Bridge over Troubled Water", Simon & Garfunkel were an American folk rock duo consisting of singer-songwriter Paul Simon, and which singer?
{'answer': 'Art Garfunkel', 'supporting_facts': [['Rain (Anthony Callea song)', 1], ['Simon &amp; Garfunkel', 0]]}