Problem: How does the sentence end?

The jar was made of glass but the bottle was plastic, so the 
Answer: jar was more fragile.

Problem: How does the sentence end?

The coin collection sold for more than the card collection as auction, because the 
Answer: coin collection was rare.

Problem: How does the sentence end?

Robert's Pom-Pom was fluffier than Randy, so 
Answer: Randy was not able to cheer the team very well.

Problem: How does the sentence end?

Last Sunday, Rachel fed the horse of Cynthia in Kentucky because 
Answer:
Rachel was in the area.