Question: what are the components of a viral envelope
[{'answer': 'phospholipids', 'provenance': [{'wikipedia_id': '4450311', 'title': 'Viral envelope', 'start_paragraph_id': 1, 'start_character': 190, 'end_paragraph_id': 1, 'end_character': 203, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'proteins', 'provenance': [{'wikipedia_id': '4450311', 'title': 'Viral envelope', 'start_paragraph_id': 1, 'start_character': 208, 'end_paragraph_id': 1, 'end_character': 216, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'viral glycoproteins', 'provenance': [{'wikipedia_id': '4450311', 'title': 'Viral envelope', 'start_paragraph_id': 1, 'start_character': 236, 'end_paragraph_id': 1, 'end_character': 255, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4450311', 'title': 'Viral envelope', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 544, 'bleu_score': 0.9483044717870771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14933833565373314364}, 'section': 'Section::::Abstract.'}]}]