Question: what is lo mein noodles made out of
[{'answer': 'wheat flour'}, {'provenance': [{'wikipedia_id': '3299274', 'title': 'Lo mein', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 199, 'bleu_score': 0.623260703848835, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7963673971526305043}, 'section': 'Section::::Abstract.'}]}]