Problem: Continue the following story.

Christopher was a novice jeweler compared to Matthew's expertise, so 
Here's how I want to continue it: Christopher was the dealer swindled by a fake sapphire.

Problem: Continue the following story.

Steven filed at a much higher bracket than Kevin on his income tax because 
Here's how I want to continue it: Steven earned a lot of money.

Problem: Continue the following story.

Lindsey enjoyed eating a lot of food with carbs but not Victoria because 
Here's how I want to continue it:
Lindsey was unhealthy.