Question: how many babies r us stores in usa
[{'answer': 'approximately 260'}, {'provenance': [{'wikipedia_id': '509306', 'title': 'Toys "R" Us', 'start_paragraph_id': 76, 'start_character': 244, 'end_paragraph_id': 76, 'end_character': 464, 'bleu_score': 0.5645052754165091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15856971862434856458}, 'section': 'Section::::Other brands.:Babies "R" Us.\n'}]}]