Question: how many bits in length is an ipv4 address
[{'answer': '32', 'provenance': [{'wikipedia_id': '15317', 'title': 'IPv4', 'start_paragraph_id': 6, 'start_character': 10, 'end_paragraph_id': 6, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Addressing.\n'}]}]