Question: which product does russia supply in large amounts to the rest of europe
[{'answer': 'oil', 'provenance': [{'wikipedia_id': '24648652', 'title': 'Russia in the European energy sector', 'start_paragraph_id': 1, 'start_character': 100, 'end_paragraph_id': 1, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'natural gas', 'provenance': [{'wikipedia_id': '24648652', 'title': 'Russia in the European energy sector', 'start_paragraph_id': 1, 'start_character': 108, 'end_paragraph_id': 1, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]