Question: who determined that light waves behave as quanta
[{'answer': 'Albert Einstein', 'provenance': [{'wikipedia_id': '23535', 'title': 'Photon', 'start_paragraph_id': 3, 'start_character': 60, 'end_paragraph_id': 3, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23535', 'title': 'Photon', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1368, 'bleu_score': 0.843674562570331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17398719001797623989}, 'section': 'Section::::Abstract.'}]}]