How many movies has Quentin Tarantino directed?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q1860', 'id': 0, 'label': 'English'}, {'type': 'INTERNAL', 'name_': 'Q150', 'id': 1, 'label': 'French'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q19108', 'id': 2, 'label': '9'}, {'type': 'INTERNAL', 'name_': 'Q748986', 'id': 3, 'label': 'Natural Born Killers'}, {'type': 'INTERNAL', 'name_': 'Q212026', 'id': 4, 'label': 'Mira Sorvino'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q3772', 'id': 5, 'label': 'Quentin Tarantino'}, {'type': 'INTERNAL', 'name_': 'Q105103179', 'id': 6, 'label': 'Avant la bataille'}, {'type': 'INTERNAL', 'name_': 'Q107524706', 'id': 7, 'label': None}], 'links': [{'name_': 'P737', 'source': 0, 'target': 1, 'label': 'influenced by'}, {'name_': 'P364', 'source': 3, 'target': 0, 'label': 'original language of performance work'}, {'name_': 'P58', 'source': 3, 'target': 5, 'label': 'screenwriter'}, {'name_': 'P1412', 'source': 4, 'target': 0, 'label': 'languages spoken, written or signed'}, {'name_': 'P1412', 'source': 4, 'target': 1, 'label': 'languages spoken, written or signed'}, {'name_': 'P451', 'source': 4, 'target': 5, 'label': 'unmarried partner'}, {'name_': 'P407', 'source': 6, 'target': 1, 'label': 'language of work or name'}, {'name_': 'P747', 'source': 6, 'target': 2, 'label': 'has edition or translation'}, {'name_': 'P407', 'source': 7, 'target': 0, 'label': 'language of work or name'}, {'name_': 'P179', 'source': 7, 'target': 2, 'label': 'part of the series'}]}