arrangement, the instrument must be said to be ambiguous, in which case the facts and circumstances surrounding its execution become competent as to which one of two or more meanings was intended. (17 Am. Jur. 2d, Contracts, § 242, p. 627; Lawrence v. Cooper Independent Theatres, 177 Kan. 125, 276 P. 2d 350.)
We have combed the lease agreement in vain to discover that degree of clarity which to us denotes unambiguity. The phraseology found in paragraph 12, the terms and the language employed therein, and the general arrangement of the words and phrases give us genuine pause as to what the parties actually intended as to payment of ad valorem taxes. In 30 Am. Jur. 2d, Evidence, § 1069, pp. 210, 211, the text recites:
“. . . Written words may have more than one meaning, and while parol evidence will not be allowed to change a ‘plain meaning,’ it may be used to eliminate a doubtful one. . . .”
While we respect the views and opinions of eminent counsel, we are not bound by agreement on their part that the lease is unambiguous with respect to ad valorem taxes. Whether ambiguity exists in an instrument is a matter of law to be decided by the court. (30 Am. Jur. 2d, Evidence, § 1069, p. 211; see, also, Mr. Justice Schroeder’s concurring opinion in
Weiner v. Wilshire Oil Co., 192 Kan. 490, 500, 389 P. 2d 803.) Points of law pertaining to a case are to be determined judicially whether or not the parties litigant may be in agreement thereon.
(In re Estate of Maguire, 204 Kan. 686, 466 P. 2d 358;
Urban Renewal Agency v. Reed, 211 Kan. 705, 508 P. 2d 1227 this date decided.)
Having determined that ambiguity inheres in the contract, it follows we are constrained to hold the trial court erred in entering summaiy judgment on the ground that the lease was not ambiguous, but that the intent of the parties could be ascertained without resort to extrinsic evidence.
The law is well settled that where ambiguity exists in a document evidence is admissible as an aid to its interpretation. (30 Am. Jur. 2d, Evidence, § 1069, pp. 210, 211.) Especially may resort be had to the parties themselves. In Berg v. Scully, 120 Kan. 637, 245 Pac. 119, it was held:
“Parties to a contract know best what was meant by its terms, and are the least hable to be mistaken as to its intention, and, where the contract is silent or ambiguous concerning a vital point incident thereto, parol evidence will be received to aid in its construction.” (Syl. f 2.)