Question: what were the effects of chlorine gas in ww1
[{'answer': 'death by asphyxiation', 'provenance': [{'wikipedia_id': '167578', 'title': 'Chemical weapons in World War I', 'start_paragraph_id': 10, 'start_character': 219, 'end_paragraph_id': 10, 'end_character': 240, 'bleu_score': 1.0, 'section': 'Section::::History of poison gas in World War I.:1915: Large-scale use and lethal gases.\n'}]}, {'answer': 'damage to the eyes , nose , throat and lungs'}, {'provenance': [{'wikipedia_id': '167578', 'title': 'Chemical weapons in World War I', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 580, 'bleu_score': 0.9306652789656261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9678981507238293518}, 'section': 'Section::::History of poison gas in World War I.:1915: Large-scale use and lethal gases.\n'}]}]