Question: what type of organism is baker's yeast
[{'answer': 'single - cell microorganism', 'provenance': [{'wikipedia_id': '194685', 'title': "Baker's yeast", 'start_paragraph_id': 1, 'start_character': 519, 'end_paragraph_id': 1, 'end_character': 550, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '194685', 'title': "Baker's yeast", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 579, 'bleu_score': 0.721417179980206, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6578910202445875640}, 'section': 'Section::::Abstract.'}]}]