38     rule = 'O employees S, NOT EXISTS (O associates S)'

    38     rule = 'O employees S, NOT EXISTS (O associates S)'

    39 

    39 

    40 

    40 

    41 class Company(EntityType):

    41 class Company(EntityType):

    42     score = Float(formula='Any AVG(NN) WHERE X employees E, N concerns E, N note NN')

    42     score = Float(formula='Any AVG(NN) WHERE X employees E, N concerns E, N note NN')

    43 

    44 

    44 

    45 

    45 class Note(EntityType):

    46 class Note(EntityType):

    46     note = Int()

    47     note = Int()

    47 

    49 

    48 

    50 

    49 class concerns(RelationDefinition):

    51 class concerns(RelationDefinition):

    50     subject = 'Note'

    52     subject = 'Note'

    51     object = 'Employee'

    53     object = 'Employee'