In Schulz v. Miller, 837 P.2d 71, 75 (Wyo. 1992), the Court held that a deed conveying real property to two persons as joint tenants with a right of survivorship defined their interest in the property, and parol evidence could not contradict the terms of the deed. Id. at 75. Schulz sought to introduce parol evidence that he paid the entire purchase price and did not intend that Miller acquire an undivided one-half ownership in the parcel. The Court held the terms of the deed were unambiguous and parol evidence could not be considered to determine the parties' rights to the property.