Fiction Plane - If Only tab

I do it by ear so tell me if there are mistakes.
[ Tab from: http://www.guitaretab.com/f/fiction-plane/355720.html ]
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G|7-9-7-7-9-7-9-7-9-11-7-9-7-7-9-7-9-7-9-11-7-9-7-7-9-7-9-7-9-11-7-9-7-7~ (up 
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G|and down)-7-9-7-4-2/7-----------------------------------------------------|
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