Jack's

We talked over Jack's plan to put in air conditioning, but could not come to a decision.

That is no fault of Jack's.

Jack's adventures are more amazing than those of the hero in many thrillers.

Jack's problem is that his wife spends more than he earns.

Jack's car is a recent model.

They made fun of Jack's haircut.

That's not Jack's fault.

Jack's book is interesting.

It is Jack's apple.

It is Jack's diamond.