(1) is it subject of a tensed clause?
     yes --> label nominative

(2) is it only nom/acc ambiguous and a non-subject?
     yes --> label accustive

(3) is it part of a constituent standing in relation to another nominal constituent?
     yes --> label genitive

(4) is it the object of a preposition?
     yes --> go to (5)
     no --> go to (8)

     (5) does the preposition only take genitive?
               yes --> label genitive

     (6) is it gen/dat ambiguous?
               yes --> label dative

     (7) is it acc/(gen)/dat ambiguous?
               yes --> leave unmarked


(8) is it a left-dislocation?
     yes --> go to (12)

(9) is it only gen/dat ambiguous?
     yes --> go to (10)
     no  --> go to (11)

(10) does the verb take genitive?
      yes --> label genitive
      no --> label dative

(11) is it acc/dat ambiguous?
          yes --> leave unmarked

(12) is the left-dislocation nom/acc ambiguous?
      yes --> go to (13)
      no  --> go to (14)

(13) is the resumptive element nominative?
      yes --> label left-dislocation nominative
      no  --> leave left-dislocation unmarked

(14) is the left-dislocation acc/gen/dat ambiguous?
      yes --> go to (15)

(15) is the case of the resumptive unambiguous?
      yes --> label left-dislocation the same
      no  --> leave left-dislocation unmarked