Question: when did oregon becomes first state to pass initiative referendum laws
[{'answer': '1902', 'provenance': [{'wikipedia_id': '256286', 'title': 'List of Oregon ballot measures', 'start_paragraph_id': 2, 'start_character': 63, 'end_paragraph_id': 2, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '256286', 'title': 'List of Oregon ballot measures', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 278, 'bleu_score': 0.953991849837532, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17879278047365735997}, 'section': 'Section::::Abstract.'}]}]