Ambiguities related to intension and their consequent inference failures are a diverse group, both syntactically and semantically. One particular kind of ambiguity t h a t has received little attention so far is whether it is the speaker or the third p a r t y to whom a description in an opaque third-party attitude report should be attributed. The different readings lead to different inferences in a system modeling the beliefs of external agents. We propose t h a t a unified approach to the representation of the alternative readings of intension-related ambiguities can be based on the.
