Question: factors that contribute to the spread of hiv in nigeria
[{'answer': 'prostitution', 'provenance': [{'wikipedia_id': '19027886', 'title': 'HIV/AIDS in Nigeria', 'start_paragraph_id': 1, 'start_character': 576, 'end_paragraph_id': 1, 'end_character': 588, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'international trafficking of women', 'provenance': [{'wikipedia_id': '19027886', 'title': 'HIV/AIDS in Nigeria', 'start_paragraph_id': 1, 'start_character': 754, 'end_paragraph_id': 1, 'end_character': 788, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'irregular blood screening', 'provenance': [{'wikipedia_id': '19027886', 'title': 'HIV/AIDS in Nigeria', 'start_paragraph_id': 1, 'start_character': 794, 'end_paragraph_id': 1, 'end_character': 819, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'high - risk practices among itinerant workers'}, {'answer': 'high prevalence of sexually transmitted infections ( STI )'}, {'answer': 'clandestine high - risk heterosexual and homosexual practices'}, {'provenance': [{'wikipedia_id': '19027886', 'title': 'HIV/AIDS in Nigeria', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 819, 'bleu_score': 0.8259132044343781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2099756387879585508}, 'section': 'Section::::Abstract.'}]}]