story: Lenny was laying on his couch watching TV. His cat came inside and jumped into his lap. Lenny began scratching the cat when he noticed the bugs in it's fur. He put the cat in the bathroom. Then, he quickly went out and bought some bug cream.
 selected sentence: Lenny began scratching the cat when he noticed the bugs in it's fur.
Lenny notices bugs >Causes/Enables> Lenny buys bug cream