Question: where does prime rib come from on a cow
[{'answer': 'the primal rib', 'provenance': [{'wikipedia_id': '3287138', 'title': 'Standing rib roast', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'from the primal rib , one of the nine primal cuts of beef .'}, {'answer': 'the primal rib , one of the nine primal cuts of beef'}, {'provenance': [{'wikipedia_id': '3287138', 'title': 'Standing rib roast', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 246, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12961680265518850420}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3287138', 'title': 'Standing rib roast', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['the primal rib', 'A standing rib roast, also known as prime rib, is a cut of beef from the primal rib, one of the nine primal cuts of beef.', 'A standing rib roast, also known as prime rib, is a cut of beef from the primal rib, one of the nine primal cuts of beef. While the entire rib section comprises ribs six through 12, a standing rib roast may contain anywhere from two to seven ribs.']}}]}]