Question: how many apps are in google play store
[{'answer': 'over 2.7 million apps'}, {'provenance': [{'wikipedia_id': '34986915', 'title': 'Google Play', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 793, 'bleu_score': 0.965664648905967, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10301189298353227441}, 'section': 'Section::::Abstract.'}]}]