In the 2004 Summer Olympics, which events did Michael Phelps compete in but did not win the gold medals?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q6173448', 'id': 0, 'label': 'Wikipedia:Vital articles/Level/4'}, {'type': 'INTERNAL', 'name_': 'Q30', 'id': 1, 'label': 'United States of America'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1860', 'id': 2, 'label': 'English'}, {'type': 'INTERNAL', 'name_': 'Q884', 'id': 3, 'label': 'South Korea'}, {'type': 'INTERNAL', 'name_': 'Q542', 'id': 4, 'label': 'athletics'}, {'type': 'INTERNAL', 'name_': 'Q224454', 'id': 5, 'label': 'athletics at the 1988 Summer Olympics'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q3628685', 'id': 6, 'label': "athletics at the 1988 Summer Olympics – women's 3000 metres"}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q39562', 'id': 7, 'label': 'Michael Phelps'}], 'links': [{'name_': 'P5008', 'source': 1, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 1, 'target': 1, 'label': 'country'}, {'name_': 'P37', 'source': 1, 'target': 2, 'label': 'official language'}, {'name_': 'P530', 'source': 1, 'target': 3, 'label': 'diplomatic relation'}, {'name_': 'P5008', 'source': 2, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 2, 'target': 1, 'label': 'country'}, {'name_': 'P5008', 'source': 4, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 5, 'target': 3, 'label': 'country'}, {'name_': 'P641', 'source': 5, 'target': 4, 'label': 'sport'}, {'name_': 'P527', 'source': 5, 'target': 6, 'label': 'has part(s)'}, {'name_': 'P5008', 'source': 7, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P27', 'source': 7, 'target': 1, 'label': 'country of citizenship'}, {'name_': 'P1412', 'source': 7, 'target': 2, 'label': 'languages spoken, written or signed'}]}