premise: Mill was headed to his first day of school.
initial: When he arrived to class the teacher sat him with other black kids.
counterfactual: The teacher sat him with the white kids.
original_ending: Mill couldn't understand why he couldn't sit up front. His teacher told him the back is the spot he belongs. Mill learned later that his teacher was racist.
edited_ending: Mill couldn't understand why he couldn't sit in the back.His teacher told him the front is the spot he belongs.Mill learned later that his teacher was racist.<SEP>Mill couldn't understand why race mattered anymore.His teacher told him it was for a project on segregation.Mill learned later that his teacher was racist.<SEP>Mill couldn't understand why he couldn't sit up front.His teacher told him the back is the spot he belongs.Mill learned later that his teacher was racist against white people.