YOU SAID:
Giuseppe wants to eat spaghetti pizza
INTO JAPANESE
ジュゼッペがスパゲッティ ピザを食べたいです。
BACK INTO ENGLISH
I want to eat spaghetti pizza for Giuseppe.
INTO JAPANESE
私はジュゼッペのスパゲッティ ピザを食べたいです。
it is unlikely that this phrase will ever reach equilibrium