Question: what is an example of a url address
[{'answer': 'http://www.example.com/index.html'}, {'provenance': [{'wikipedia_id': '47817022', 'title': 'URL', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 203, 'bleu_score': 0.707786583395553, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8612758303476964458}, 'section': 'Section::::Abstract.'}]}]