How many countries and satellite states were in the Warsaw Pact?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q36', 'id': 0, 'label': 'Poland'}, {'type': 'INTERNAL', 'name_': 'Q33946', 'id': 1, 'label': 'Czechoslovakia'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q41644', 'id': 2, 'label': 'Warsaw Pact'}], 'links': [{'name_': 'P47', 'source': 1, 'target': 0, 'label': 'shares border with'}, {'name_': 'P17', 'source': 1, 'target': 1, 'label': 'country'}, {'name_': 'P463', 'source': 1, 'target': 2, 'label': 'member of'}]}