Problem: Continue the following story.

The stomach of Neil was rumbling, but Samuel seemed fine, due to 
Here's how I want to continue it: Samuel being satiated.

Problem: Continue the following story.

Joel has recently bought a duck and doesn't know its sex so he asks Donald for help, because 
Here's how I want to continue it: Donald is duck expert.

Problem: Continue the following story.

At the school, Natalie but not Mary won the big wrestling tournament because 
Here's how I want to continue it:
Mary was unprepared.