Question: who was the first person to set foot on antarctica
[{'answer': 'American Captain John Davis', 'provenance': [{'wikipedia_id': '51314', 'title': 'History of Antarctica', 'start_paragraph_id': 3, 'start_character': 846, 'end_paragraph_id': 3, 'end_character': 873, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51314', 'title': 'History of Antarctica', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 219, 'bleu_score': 0.783797768103858, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5921315815146719050}, 'section': 'Section::::Early exploration.:Early exploration.\n'}]}]