Question: magic the gathering how many cards in deck
[{'answer': 'usually 60 cards'}, {'answer': 'a minimum deck size of 40 cards'}, {'provenance': [{'wikipedia_id': '18830', 'title': 'Magic: The Gathering', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 536, 'bleu_score': 0.6015063058251701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3618375801675171616}, 'section': 'Section::::Abstract.'}]}]