sentences:  The CW began this tie-in campaign with the March 13, 2008 episode "Hero", where Pete develops superhuman elasticity after chewing some kryptonite-infused Stride gum.Going to The CW's website, viewers vote on one of two options—each adding four pages to the comic—every Tuesday and Thursday until the campaign ended on April 7, 2008.For season seven, "Smallville" again worked with Sprint, bringing its customers "mobisodes" featuring Clark's cousin Kara, titled "Smallville Legends