premise: Glen was in the mood for a walk.
initial: He put on his jacket and went outside.
counterfactual: He went to his basement and used his treadmill.
original_ending: While walking on the sidewalk, he tripped and busted his knee open. Glen stood back up and limped back to his house. Glen swore he'd never walk again.
edited_ending: While walking on his treadmill, he tripped and busted his knee open.Glen stood back up and limped back upstairs.Glen swore he'd never walk again.<SEP>While walking on the treadmill, he tripped and busted his knee open.Glen stood back up and limped back up the stairs.Glen swore he'd never walk again.<SEP>While walking on the treadmill, he tripped and busted his knee open.Glen stood back up and limped back upstairs.Glen swore he'd never be stupid on the treadmill again.