The plaintiff and the defendant entered into a three- year contract in which the defendant would be the sole supplier of steel parts that the plaintiff used in its products. A dispute arose after the defendant sought to surcharge the parts sold to reflect increased costs. The plaintiff filed a lawsuit for breach of contract, and the jury returned a verdict in favor of the defendant, finding on a special verdict that there had been a valid modification to the contract, based solely on e-mails between the parties. Is this evidence enough to support a reformation of the contract?