Question: which term means the amount of energy in a body or stream of water
[{'answer': 'power', 'provenance': [{'wikipedia_id': '14073', 'title': 'Hydropower', 'start_paragraph_id': 0, 'start_character': 5, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14073', 'title': 'Hydropower', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 421, 'bleu_score': 0.9101493406886231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16912257880171196747}, 'section': 'Section::::Calculating the amount of available power.\n'}]}]