Answer:
A change in the meaning of an unambiguous provision in the contract
Explanation:
The main aim of the pleading the parol evidence rule is to ensure that a party is prevented from any introduction of evidence of oral agreements made before the contract was agreed or in the process of reducing the agreement to its final form for the purpose of altering the existing terms in the current contract. Hence Weaver pleading the parol evidence rule ensures that Ward does not introduce parol evidence as long as it relates to a change in any of the provisions in the contract.
