Question: when did gretsch stop making guitars in america
[{'answer': 'the 1990s', 'provenance': [{'wikipedia_id': '1242656', 'title': 'Gretsch', 'start_paragraph_id': 33, 'start_character': 271, 'end_paragraph_id': 33, 'end_character': 280, 'bleu_score': 1.0, 'section': 'Section::::History.:Sale to Baldwin, Gretsch family regains interest.\n'}]}, {'provenance': [{'wikipedia_id': '1242656', 'title': 'Gretsch', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 473, 'bleu_score': 0.8869794465538711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12238245937179986159}, 'section': 'Section::::History.:Sale to Baldwin, Gretsch family regains interest.\n'}]}]