Question: when did sweet child of mine hit the charts
[{'answer': '1988', 'provenance': [{'wikipedia_id': '625359', 'title': "Sweet Child o' Mine", 'start_paragraph_id': 1, 'start_character': 148, 'end_paragraph_id': 1, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1989', 'provenance': [{'wikipedia_id': '625359', 'title': "Sweet Child o' Mine", 'start_paragraph_id': 1, 'start_character': 338, 'end_paragraph_id': 1, 'end_character': 342, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '625359', 'title': "Sweet Child o' Mine", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 424, 'bleu_score': 0.582031334610939, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6004108041490878783}, 'section': 'Section::::Abstract.'}]}]