Title: Towards a Taxonomy of Projective Content Authors' Names and Affiliations: Paraguayan Guaraní Language Consultants for Working with Us, Especially

Projective contents, which include presuppositional infe rences and Potts’ (2005) conventional implicatures, are contents which may project when a construct ion is embedded, as standardly identified by the Family of Sentences diagnostic (e.g. Chierchia an d McConnell-Ginet 1990). This paper establishes distinctions among projective contents on the basis of a series of diagnostics, including a variant of the Family of Sentences diagnostic, that can be a pplied with linguistically untrained consultants in the field and the laboratory. These diagnosti cs are intended to serve as part of a toolkit for exploring projective contents across language s, thus allowing generalizations to be examined and validated cross-linguistically. We apply the di agnostics in two languages, focussing on Paraguayan Guaranı́ (Tupı́-Guaranı́), and comparing th e results to those for English. Our study of Paraguayan Guaranı́ is the first systematic exploration o f projective content in a language other than English. Based on the application of our diagnostics to a wide range of constructions, four subclasses of projective contents emerge. The resulting ta xonomy of projective content has strong implications for contemporary theories of projection (e.g . Karttunen 1974; Heim 1983; van der Sandt 1992; Potts 2005; Schlenker 2009), which were develop ed for the projective properties of particular subclasses and fail to generalize to the full set of projective contents. ∗