 Ter Meulen (1986), Gerstner-Link (1988), and Cavedon and Glasbey (1994) offer treatments of generics in the framework of situation semantics (Barwise and Perry 1983). On such views, generics express constraints on situations—e.g., “tigers are striped” expresses the constraint that every situation involving a tiger involves a striped tiger. Constraints are not reducible to the properties of individuals (Cavedon and Glasbey 1994). The interpretation of a generic on these views is relative to a given context (or “channel” as they style it), so as on the above views, generics such as “ducks lay eggs” are evaluated only with respect to the female ducks (Cavedon and Glasbey 1994).