story: Gus lived in the city and had never seen a firefly. He visited his Grandfather and was surprised by these light up bugs. His Grandfather helped him find a jar to keep the lightning bugs in. Gus spent an hour catching the bugs and putting them in a jar. It was a night they would never forget.
 selected sentence: His Grandfather helped him find a jar to keep the lightning bugs in.
Gus's grandfather helped him find a jar to keep the lightning bugs in >Causes/Enables> Gus put the lightning bugs in the jar