A more thorough explanation:

A claim for relief is a statement of facts that a party presents in court to prove that they have the right to recover damages from a defendant. It is also known as a cause of action. If a lawsuit is filed without a claim for relief, it will be dismissed under Federal Rule of Civil Procedure 12(b)(6) for failure to state a claim.

To survive a 12(b)(6) motion to dismiss, a claim for relief must be plausible and establish more than just the possibility of the defendant's liability. It must be stated at the pleading stage of litigation, and a party cannot use discovery tools until a claim for relief that survives a 12(b)(6) motion is established.

John sues Jane for breach of contract. In his complaint, John alleges that he and Jane entered into a contract for Jane to provide him with a car, but Jane failed to deliver the car. John's claim for relief is that Jane breached the contract by failing to provide the car, and he is seeking damages for the cost of renting a car while he waited for Jane to deliver the car.

This example illustrates a claim for relief because John is presenting a set of facts that he believes entitles him to recover damages from Jane. He is alleging that Jane breached their contract, and he is seeking relief in the form of damages for the cost of renting a car.