Question: what is the animal on liverpool's crest
[{'answer': 'The liver bird', 'provenance': [{'wikipedia_id': '1504124', 'title': 'Liver bird', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1504124', 'title': 'Liver bird', 'start_paragraph_id': 1, 'start_character': 10, 'end_paragraph_id': 1, 'end_character': 270, 'bleu_score': 0.8835633417334701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6699694080235690612}, 'section': 'Section::::Abstract.'}]}]