This is the mandolin part, this is the exact way the guitarists plays it in 
concert. It's played on the intro and the verses


e|-------------------------|
B|----5--7--5---7-5---7-5--|
G|-7----------7-----7------| Play 3 times
D|-------------------------|
A|-------------------------|
E|-------------------------|

Fourth time play this

e|--------------------5--|
B|----5--7--5---7-5------|
G|-7----------7-----7----|
D|-----------------------|
A|-----------------------|
E|-----------------------|

There ya go