Question: what kind of heating is a heat pump
[{'answer': 'thermal energy', 'provenance': [{'wikipedia_id': '68316', 'title': 'Heat pump', 'start_paragraph_id': 1, 'start_character': 120, 'end_paragraph_id': 1, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '68316', 'title': 'Heat pump', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 623, 'bleu_score': 0.979896933041101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5114448257764867150}, 'section': 'Section::::Overview.\n'}]}]