Question: who is the nfc team in the 2018 superbowl
[{'answer': 'Philadelphia Eagles', 'provenance': [{'wikipedia_id': '40148429', 'title': 'Super Bowl LII', 'start_paragraph_id': 1, 'start_character': 185, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '40148429', 'title': 'Super Bowl LII', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 707, 'bleu_score': 0.9538330902093691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2927275913409705562}, 'section': 'Section::::Abstract.'}]}]