How many studio albums has Pink released?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q1860', 'id': 0, 'label': 'English'}, {'type': 'INTERNAL', 'name_': 'Q6581072', 'id': 1, 'label': 'female'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q160009', 'id': 2, 'label': 'P!nk'}, {'type': 'INTERNAL', 'name_': 'Q65924745', 'id': 3, 'label': 'Vriska Serket'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q23355', 'id': 4, 'label': '8'}, {'type': 'INTERNAL', 'name_': 'Q111909129', 'id': 5, 'label': None}], 'links': [{'name_': 'P103', 'source': 2, 'target': 0, 'label': 'native language'}, {'name_': 'P21', 'source': 2, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P21', 'source': 3, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P2650', 'source': 3, 'target': 4, 'label': 'interested in'}, {'name_': 'P1412', 'source': 5, 'target': 0, 'label': 'languages spoken, written or signed'}, {'name_': 'P1074', 'source': 5, 'target': 4, 'label': 'fictional or mythical analog of'}]}