story: Alison hates turtles. Allison's class went on a field trip to a zoo. They saw many turtles. Alison almost threw up from looking at the turtles. She was very glad when they left the zoo.
 selected sentence: Allison's class went on a field trip to a zoo.
Allison's class goes to the zoo >Causes/Enables> Allison's class sees turtles