Question: when did the first witcher book come out
[{'answer': '1990', 'provenance': [{'wikipedia_id': '33912861', 'title': 'The Witcher', 'start_paragraph_id': 4, 'start_character': 390, 'end_paragraph_id': 4, 'end_character': 394, 'bleu_score': 1.0, 'section': 'Section::::Books.\n'}]}, {'provenance': [{'wikipedia_id': '33912861', 'title': 'The Witcher', 'start_paragraph_id': 4, 'start_character': 20, 'end_paragraph_id': 4, 'end_character': 613, 'bleu_score': 0.796182575061217, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4913888780122354327}, 'section': 'Section::::Books.\n'}]}]