Below is the statutory language of Robbery as defined by the Pennsylvania Consolidated Statutes:

 § 3701.  Robbery.
        (a)  Offense defined.--
            (1)  A person is guilty of robbery if, in the course of
        committing a theft, he:
                (i)  inflicts serious bodily injury upon another;
                (ii)  threatens another with or intentionally puts
            him in fear of immediate serious bodily injury;
                (iii)  commits or threatens immediately to commit any
            felony of the first or second degree;
                (iv)  inflicts bodily injury upon another or
            threatens another with or intentionally puts him in fear
            of immediate bodily injury; or
                (v)  physically takes or removes property from the
            person of another by force however slight.
            (2)  An act shall be deemed "in the course of committing
        a theft" if it occurs in an attempt to commit theft or in
        flight after the attempt or commission.
        (b)  Grading.--Robbery under subsection (a)(1)(iv) is a
     felony of the second degree; robbery under subsection (a)(1)(v)
     is a felony of the third degree; otherwise, it is a felony of
     the first degree.