premise: Sam has a toothache.
initial: He makes a dentist appointment.
counterfactual: He is always calm at the dentist.
original_ending: Sam is very nervous. Sam's dentist is very nice and gentle. Sam was happy with the dentist he chose.
edited_ending: Sam is very calm.Sam's dentist is very nice and gentle.Sam was happy with the dentist he chose.<SEP>Sam is very calm.Sam's dentist is very nice and gentle.Sam was happy with the dentist he chose.<SEP>Sam's dentist greeted him when he arrived.Sam's dentist is very nice and gentle.Sam was happy with the dentist he chose.