Cold Chisel - Merry Go Round Tabs

there is a riff played by a piano for the whole song it is:


Riff1:  (There is more muting between strums as the song develops, just listen to it)
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---9-9---x--7-7-|
---9-9---x--7-7-|
---7-7---x--5-5-|
----------------|
Riff2
----------------|
----------------|
----------------|
--7-7----hold---|
--7-7-----------|
--5-5-----------|
Riff3
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----------------|
----------------|
-7-7--------5-5-|
-7-7--------5-5-|
-5-5--------3-3-|