Chords

I do not know the names of those 3 pwr chords so if someone knows them plz email me
SKandrot@aol.com

   C   G  Am   F  C5   ?   ?2  ?3
e--0---2---0---1------------------
B--1---2---1---1------------------
G--0---0---2---2---5--------------
D--2---0---2---3---5---5---7---3--
A--3---2---0---1---3---5---7---3--
E--0---3---0---1-------3---5---1--

 C              G             A                    F     C    G

I'll catch you again someday on the streets of Pittsburgh Pennsylvania

        F         G