If Sam has high ambitions and future career goals and is a young teenage girl attending college, then Sam either does not have high ambitions and future career goals or is not a young teenage girl attending college.
Ambitious(sam) ∧ Attend(sam, festival) ∧ YoungTeenageGirl(sam) → ¬(Ambitious(sam) ∨ (Attend(sam, festival) ∧ YoungTeenageGirl(sam)))