Question: players who moved from manchester united to liverpool
[{'answer': 'Jackie Sheldon'}, {'answer': 'Fred Hopkin'}, {'answer': 'Thomas McNulty'}, {'answer': 'Phil Chisnall', 'provenance': [{'wikipedia_id': '11254288', 'title': 'Liverpool F.C.–Manchester United F.C. rivalry', 'start_paragraph_id': 37, 'start_character': 27, 'end_paragraph_id': 37, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Players.:Player transfers.\n'}]}]