Question: when did kodak introduce film photography to the commercial market
[{'answer': '1888', 'provenance': [{'wikipedia_id': '57627', 'title': 'Kodak', 'start_paragraph_id': 2, 'start_character': 72, 'end_paragraph_id': 2, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '57627', 'title': 'Kodak', 'start_paragraph_id': 31, 'start_character': 0, 'end_paragraph_id': 31, 'end_character': 1132, 'bleu_score': 0.9615845280401821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3336115347984768475}, 'section': 'Section::::History.:Timeline.:1880–98.\n'}]}]