Question: how much did the us pay mexico in the treaty of guadalupe hidalgo
[{'answer': 'US $ 15 million'}, {'provenance': [{'wikipedia_id': '165381', 'title': 'Treaty of Guadalupe Hidalgo', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 613, 'bleu_score': 0.941455258445524, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13975919533085005011}, 'section': 'Section::::Abstract.'}]}]