Predicate: xafaD-i
Roleset id: 01 , to lower, drop, pring down
        Arg0: entity moving something downward
        Arg1: Logical subject, patient, thing going down
        Arg2: ext, amount gone down by
        Arg3: start point
        Arg4: end point, end state of arg1
Frame:
باحثان من جامعة فلوريدا : البطيخ يخفض * ضغط الدم
        Arg0 : * > البطيخ
        Gloss: it
        Arg1 : ضغط الدم
        Gloss: Blood pressure