Question: who sang the song knock three times on the ceiling
[{'answer': 'Tony Orlando', 'provenance': [{'wikipedia_id': '758416', 'title': 'Knock Three Times', 'start_paragraph_id': 1, 'start_character': 65, 'end_paragraph_id': 1, 'end_character': 77, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Toni Wine', 'provenance': [{'wikipedia_id': '758416', 'title': 'Knock Three Times', 'start_paragraph_id': 1, 'start_character': 145, 'end_paragraph_id': 1, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Linda November', 'provenance': [{'wikipedia_id': '758416', 'title': 'Knock Three Times', 'start_paragraph_id': 1, 'start_character': 160, 'end_paragraph_id': 1, 'end_character': 174, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '758416', 'title': 'Knock Three Times', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 593, 'bleu_score': 0.7028738583912421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6568807128392777626}, 'section': 'Section::::Abstract.'}]}]