Task: Story Composition
Input (English): Premise: Alex was walking to school and saw a snail crossing the sidewalk. 
 Initial Context: She stopped to watch the snail. 
 Original Ending: Then she saw three smaller snails following the first one. Alex watched and waited for all the snails to cross the sidewalk. She felt happy knowing that the snail family made it safely across. 
 New ending: Then she saw three smaller snails passing by the snail she stepped on. Alex watched and waited for the remaining snails to cross the sidewalk. She felt happy knowing that not all of the snail family made it safely across. 
Output (English): She stepped on the snail.