Question: what's the difference between a black russian and a white russian
[{'answer': 'the addition of cream', 'provenance': [{'wikipedia_id': '33828', 'title': 'White Russian (cocktail)', 'start_paragraph_id': 3, 'start_character': 110, 'end_paragraph_id': 3, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '33828', 'title': 'White Russian (cocktail)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 278, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11556920592231250484}, 'section': 'Section::::History.\n'}]}]