How many islands in the Caribbean are over 29,000 square miles?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q1970746', 'id': 0, 'label': 'Explanatory Dictionary of the Living Great Russian Language'}, {'type': 'INTERNAL', 'name_': 'Q6173448', 'id': 1, 'label': 'Wikipedia:Vital articles/Level/4'}, {'type': 'INTERNAL', 'name_': 'Q769', 'id': 2, 'label': 'Grenada'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q664609', 'id': 3, 'label': 'Caribbean'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q199', 'id': 4, 'label': '1'}, {'type': 'INTERNAL', 'name_': 'Q586657', 'id': 5, 'label': 'Cuba'}], 'links': [{'name_': 'P5008', 'source': 2, 'target': 1, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 2, 'target': 2, 'label': 'country'}, {'name_': 'P361', 'source': 2, 'target': 3, 'label': 'part of'}, {'name_': 'P1343', 'source': 4, 'target': 0, 'label': 'described by source'}, {'name_': 'P5008', 'source': 4, 'target': 1, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P8865', 'source': 4, 'target': 4, 'label': 'mathematical inverse'}, {'name_': 'P1343', 'source': 5, 'target': 0, 'label': 'described by source'}, {'name_': 'P361', 'source': 5, 'target': 3, 'label': 'part of'}]}