Question: how many ipv4 addresses are there in total
[{'answer': 'fewer than 4.3 billion', 'provenance': [{'wikipedia_id': '6852935', 'title': 'IPv4 address exhaustion', 'start_paragraph_id': 1, 'start_character': 102, 'end_paragraph_id': 1, 'end_character': 124, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6852935', 'title': 'IPv4 address exhaustion', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 408, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2372586274054282366}, 'section': 'Section::::Abstract.'}]}]