How many studio albums does Alice Cooper have?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'INTERNAL', 'name_': 'Q482994', 'id': 1, 'label': 'album'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q332032', 'id': 2, 'label': 'Alice Cooper'}, {'type': 'INTERNAL', 'name_': 'Q249624', 'id': 3, 'label': 'Welcome 2 My Nightmare'}, {'type': 'INTERNAL', 'name_': 'Q62974646', 'id': 4, 'label': "Alice Cooper's (band) albums in chronological order"}, {'type': 'INTERNAL', 'name_': 'Q262947', 'id': 5, 'label': "School's Out"}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1754799', 'id': 6, 'label': 'Easy Action'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P27', 'source': 2, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P31', 'source': 3, 'target': 1, 'label': 'instance of'}, {'name_': 'P175', 'source': 3, 'target': 2, 'label': 'performer'}, {'name_': 'P360', 'source': 4, 'target': 1, 'label': 'is a list of'}, {'name_': 'P527', 'source': 4, 'target': 5, 'label': 'has part(s)'}, {'name_': 'P527', 'source': 4, 'target': 6, 'label': 'has part(s)'}, {'name_': 'P291', 'source': 5, 'target': 0, 'label': 'place of publication'}, {'name_': 'P31', 'source': 5, 'target': 1, 'label': 'instance of'}, {'name_': 'P361', 'source': 5, 'target': 4, 'label': 'part of'}]}