Question: the major carbohydrate that tissue cells use as fuel is
[{'answer': 'Glucose', 'provenance': [{'wikipedia_id': '383675', 'title': 'Carbohydrate metabolism', 'start_paragraph_id': 3, 'start_character': 191, 'end_paragraph_id': 3, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '383675', 'title': 'Carbohydrate metabolism', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 630, 'bleu_score': 0.9635165832749841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11597136160512207656}, 'section': 'Section::::Abstract.'}]}]