Question: who was sent to england to convert the pagan anglo-saxons to christianity
[{'answer': 'Gregorian mission', 'provenance': [{'wikipedia_id': '25573890', 'title': 'Christianisation of Anglo-Saxon England', 'start_paragraph_id': 1, 'start_character': 121, 'end_paragraph_id': 1, 'end_character': 138, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25573890', 'title': 'Christianisation of Anglo-Saxon England', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 357, 'bleu_score': 0.9250392488272071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15264653787888454295}, 'section': 'Section::::Abstract.'}]}]