Question: the metal of choice for inlay and onlay cast restorations is
[{'answer': 'gold', 'provenance': [{'wikipedia_id': '1944455', 'title': 'Inlays and onlays', 'start_paragraph_id': 2, 'start_character': 56, 'end_paragraph_id': 2, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1944455', 'title': 'Inlays and onlays', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 1246, 'bleu_score': 0.9903611645834961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15658153028415757339}, 'section': 'Section::::Onlays.\n'}]}]