I realized that WordNet returns a sorted list based on nouns, verbs etc.
Example: "story"
Noun: narrative, narration, story, tale #1
Noun: story #2
Noun: floor, level, storey, story #3
So now I can simply add sense number 1, 2 and 3 to the first three nouns (and the rest will continune of course). Then I can compare this with user#n#1 from the word sense disambiguation. The creators of RitaWordNet responded that they would like to implement the sense number in their api, but they don't have an upcoming relase for a new version so this may take a while.