Predicate: SaE~ab
Roleset id: 01 , to make difficult or hard
        Arg0: agent
        Arg1: thing became difficult
        Arg2: for whom? (marked by على)
Frame:
كان المعلم لا يحب * أن يصعب الأسئلة على طلابه
        Arg0 : * > المعلم
        Gloss: he
        Arg1 : أن يصعب الأسئلة
        Gloss: to make questions difficult
        Arg2 : على طلابه
        Gloss: for his students