Question: around what year do we think sir gawain and the green knight was written
[{'answer': 'late 14th - century', 'provenance': [{'wikipedia_id': '28833', 'title': 'Sir Gawain and the Green Knight', 'start_paragraph_id': 1, 'start_character': 87, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28833', 'title': 'Sir Gawain and the Green Knight', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 734, 'bleu_score': 0.7028805022080991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3263436633682666566}, 'section': 'Section::::Abstract.'}]}]