 Since Montague only considered sentences in isolation, certain commentators pointed out that the sentence boundary was a serious limitation for the approach. But what about discourse? An obvious requirement is that the sentences from a discourse are interpreted one by one. How then to treat co-referentiality of anaphora over sentence boundaries? The solution which was proposed first was Discourse Representation Theory (Kamp 1981). On the one hand, that was an offspring of Montague’s approach because it used model theoretic semantics; on the other hand, it was a deviation because (discourse) representations were an essential ingredient. Nowadays there are several reformulations of DRT that fit into Montague’s framework (see van Eijck and Kamp 1997). A later solution was based upon a change of the logic; dynamic Montague semantics was developed and that gave a procedure for binding free variables in logic which has an effect on subsequent formulas (Groenendijk and Stokhof 1990, 1991). Hence the sentence boundary is not a fundamental obstacle for Montague semantics.