 Supervaluationism will converge with classical logic only if each word of the supervaluated sentence is uniformly interpreted. For instance, ‘Either a carbon copy of Teddy Roosevelt’s signature is an autograph or it is not the case that a carbon copy of Teddy Roosevelt’s signature is an autograph’ comes out true only if ‘autograph’ is interpreted the same way in both disjuncts. Vague sentences resist mixed interpretations. However, mixed interpretations are permissible for ambiguous sentences. As Lewis himself notes in a criticism of relevance logic, ‘Scrooge walked along the bank on his way to the bank’ can receive a mixed disambiguation. When exterminators offer ‘non-toxic ant poison’, we charitably switch relativizations within the noun phrase: the substance is safe for human beings but deadly for ants.