25.—(1) This Article applies to a will—
(a)in so far as any part of it is meaningless;
(b)in so far as the language used in any part of it is ambiguous on the face of it;
(c)in so far as evidence, other than evidence of the testator’s intention, shows that the language used in any part of it is ambiguous in the light of surrounding circumstances.
(2) In so far as this Article applies to a will extrinsic evidence, including evidence of the testator’s intention, may be admitted to assist in its interpretation.