How many Saw movies have been released?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1145690', 'id': 0, 'label': 'Saw'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q17076072', 'id': 1, 'label': 'Lionsgate Films'}], 'links': [{'name_': 'P750', 'source': 0, 'target': 1, 'label': 'distributed by'}]}