Question: about how often is a full moon observed from earth’s surface
[{'answer': 'once roughly every month'}, {'provenance': [{'wikipedia_id': '11432', 'title': 'Full moon', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 405, 'bleu_score': 0.8063613005920921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 394248405173721561}, 'section': 'Section::::Abstract.'}]}]