Question: Which 1968 Beatles' song, which is written by Paul McCartney but credited to the song partnership Lennon-McCarney, opens the double-disc album "The Beatles" and then seques into "Dear Prudence"?
{'answer': 'Back in the U.S.S.R.', 'supporting_facts': [['Back in the USSR (disambiguation)', 0], ['Back in the U.S.S.R.', 0], ['Back in the U.S.S.R.', 1], ['Back in the U.S.S.R.', 2]]}