Question: when was the first cricket world cup held
[{'answer': 'England', 'provenance': [{'wikipedia_id': '7239', 'title': 'Cricket World Cup', 'start_paragraph_id': 2, 'start_character': 37, 'end_paragraph_id': 2, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7239', 'title': 'Cricket World Cup', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 490, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3064086918336301702}, 'section': 'Section::::History.:Prudential World Cups (1975–1983).\n'}]}]