story: Bob sat there in the chair staring at the tray of sharp tools. The novacane had kicked in and he was drooling fiercely. He wasn't sure what was coming but he just knew it would be awful. In walked the Dentist who looked at the tools and pushed them aside. When he pulled out the chainsaw Bob just fainted.
 selected sentence: When he pulled out the chainsaw Bob just fainted.
The dentist pulls out a chainsaw >Causes/Enables> Bob faints