Question: when does the green knight appear in camelot
[{'answer': "New Year 's Day", 'provenance': [{'wikipedia_id': '28833', 'title': 'Sir Gawain and the Green Knight', 'start_paragraph_id': 37, 'start_character': 191, 'end_paragraph_id': 37, 'end_character': 206, 'bleu_score': 1.0, 'section': 'Section::::Themes.:Times and seasons.\n'}]}, {'provenance': [{'wikipedia_id': '28833', 'title': 'Sir Gawain and the Green Knight', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1343, 'bleu_score': 0.9919838063163071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2673909151532792062}, 'section': 'Section::::Synopsis.\n'}]}]