Well, I'm thinking about how important Trentino was to Italy and Venetia was to Austria-Hungary during the pre-WW1 period. So suppose A-H gave Italy only Trentino (but not South Tyrol and Trieste) to Italy, would it be enough to keep the Italians neutral (not including French colonies given to them later)? How would this affect the prestige of the Hapsburgs? On the other hand, what if Italy joined a defeated Entente and was forced to cede Venetia to A-H? How severe would this loss be to Italy as a whole? Also, how would this benefit A-H? I believe A-H would not want to take anymore territory though.