Contract Dispute

A contract is supposed to impose binding terms upon the parties to a contract. Sometimes, however, a contract is not clear, or a party says the contract does not express the intent of the parties. For example, the parties may use a general form and does not necessarily describe specific details of goods delivered or the dates of delivery. Based on the above, answer the following questions: Can the intent of the parties come into evidence during a contract dispute? Why is the intent of the parties a necessary element in a contract dispute? Support your answer with proper reason and examples.