Question: how many core editions are there of windows server 2012
[{'answer': 'four', 'provenance': [{'wikipedia_id': '34201152', 'title': 'Windows Server 2012', 'start_paragraph_id': 2, 'start_character': 96, 'end_paragraph_id': 2, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34201152', 'title': 'Windows Server 2012', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 516, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6447876613336571478}, 'section': 'Section::::Abstract.'}]}]