Question: who sang the end of the world as we know it
[{'answer': 'R.E.M.', 'provenance': [{'wikipedia_id': '1955366', 'title': "It's the End of the World as We Know It (And I Feel Fine)", 'start_paragraph_id': 1, 'start_character': 92, 'end_paragraph_id': 1, 'end_character': 98, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1955366', 'title': "It's the End of the World as We Know It (And I Feel Fine)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 329, 'bleu_score': 0.930807147807393, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9955765928505562357}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1955366', 'title': "It's the End of the World as We Know It (And I Feel Fine)", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9955765928505562357}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1955366', 'title': "It's the End of the World as We Know It (And I Feel Fine)", 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['R.E.M', '"It\'s the End of the World as We Know It (And I Feel Fine)" is a song by American rock band R.E.M., which first appeared on their 1987 album "Document". It was released as a single in November 1987, reaching No.\xa069 in the US "Billboard" Hot 100 and later reaching No.\xa039 on the UK Singles Chart on its re-release in December 1991.\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '1955366', 'title': "It's the End of the World as We Know It (And I Feel Fine)", 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['R.E.M', 'The song originated from a previously unreleased song called "PSA" ("Public Service Announcement"); the two are very similar in melody and tempo. "PSA" was itself later reworked and released as a single in 2003, under the title "Bad Day". In an interview with "Guitar World" magazine published in November 1996, R.E.M. guitarist Peter Buck agreed that "End of the World" was in the tradition of Bob Dylan\'s "Subterranean Homesick Blues". The track is known for its quick flying, seemingly stream of consciousness rant with a number of diverse references, such as a quartet of']}}]}]