Question: the scattering of light by a colloidal suspension is called the
[{'answer': 'Tyndall effect', 'provenance': [{'wikipedia_id': '1068627', 'title': 'Tyndall effect', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Willis -- Tyndall scattering'}, {'provenance': [{'wikipedia_id': '1068627', 'title': 'Tyndall effect', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 425, 'bleu_score': 0.5995810147617241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 564179499931485885}, 'section': 'Section::::Abstract.'}]}]