causalog sample output

sample.py

{'graph': {('grade', ('s', 'c')): {('gpa', ('c',)),
                                   ('level', ('c',)),
                                   ('tutoring', ('c',))},
           ('tutoring', ('c',)): {('level', ('c',)),
                                  ('phi_1', None)}},
 'unfoldings': {'phi_1': (('seniority', ('p',)),
                          (('teaches', ('p', 'c')),
                           ('rating', ('p',))))}}