How many Star Trek movies were released in the 1990s?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1092', 'id': 0, 'label': 'Star Trek'}, {'type': 'INTERNAL', 'name_': 'Q1077', 'id': 1, 'label': 'Star Trek: The Original Series'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q579757', 'id': 2, 'label': 'Star Trek VI: The Undiscovered Country'}], 'links': [{'name_': 'P800', 'source': 0, 'target': 1, 'label': 'notable work'}, {'name_': 'P8345', 'source': 1, 'target': 0, 'label': 'media franchise'}, {'name_': 'P4969', 'source': 1, 'target': 2, 'label': 'derivative work'}]}