story: Bob lived two states away from his family. He left to go spend Christmas Eve with them. When he was halfway there, he realized he forgot all of the gifts. He turned around to get them but got caught in a snowstorm. Bob became snowed in and could not make it to his family.
 selected sentence: He turned around to get them but got caught in a snowstorm.
Bob gets caught in a snowstorm >Causes/Enables> Bob gets snowed in