Question: what accounted for british military superiority in the first years of the war
[{'answer': 'weight of numbers', 'provenance': [{'wikipedia_id': '768600', 'title': 'Aviation in World War I', 'start_paragraph_id': 59, 'start_character': 1099, 'end_paragraph_id': 59, 'end_character': 1116, 'bleu_score': 1.0, 'section': 'Section::::1918 – the Spring Offensive.\n'}]}, {'provenance': [{'wikipedia_id': '768600', 'title': 'Aviation in World War I', 'start_paragraph_id': 59, 'start_character': 0, 'end_paragraph_id': 59, 'end_character': 1150, 'bleu_score': 0.9528578697427821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6590990821006799346}, 'section': 'Section::::1918 – the Spring Offensive.\n'}]}]