Question: what's the difference between salisbury steak and hamburger steak
[{'answer': 'ingredients', 'provenance': [{'wikipedia_id': '1104388', 'title': 'Salisbury steak', 'start_paragraph_id': 1, 'start_character': 104, 'end_paragraph_id': 1, 'end_character': 115, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1104388', 'title': 'Salisbury steak', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 0.7763976789517191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11784989738943317066}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1104388', 'title': 'Salisbury steak', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11784989738943317066}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1104388', 'title': 'Salisbury steak', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Hamburg steak is a similar product but differs in ingredients.', 'Salisbury steak is a dish, originating in the United States, made from a blend of ground beef and other ingredients and usually served with gravy or brown sauce. Hamburg steak is a similar product but differs in ingredients', 'Salisbury steak is a dish, originating in the United States, made from a blend of ground beef and other ingredients and usually served with gravy or brown sauce. Hamburg steak is a similar product but differs in ingredients.\rhighlight sentence(s) containing evidence, not only the answer']}}]}]