Question: what do you use to test for lipids
[{'answer': 'The emulsion test', 'provenance': [{'wikipedia_id': '17749124', 'title': 'Emulsion test', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17749124', 'title': 'Emulsion test', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 410, 'bleu_score': 0.9716239638199891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 724383946426300694}, 'section': 'Section::::Abstract.'}]}]