Question: how many colleges or universities are in the united states
[{'answer': '4,627'}, {'provenance': [{'wikipedia_id': '3189597', 'title': 'Higher education in the United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 494, 'bleu_score': 0.530408602641234, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5176680851126091059}, 'section': 'Section::::Abstract.'}]}]