LTAG semantics with semantic unification

This paper sets up a framework for LTAG (Lexicalized Tree Adjoining Grammar) semantics that brings together ideas from different recent approaches addressing some shortcomings of TAG semantics based on the derivation tree. Within this framework, several sample analyses are proposed, and it is shown that the framework allows to analyze data that have been claimed to be problematic for derivation tree based LTAG semantics approaches

Scope and situation binding in LTAG using semantic unification

This paper develops a framework for TAG (Tree Adjoining Grammar) semantics that brings together ideas from different recent approaches.Then, within this framework, an analysis of scope is proposed that accounts for the different scopal properties of quantifiers, adverbs, raising verbs and attitude verbs. Finally, including situation variables in the semantics, different situation binding possibilities are derived for different types of quantificational elements

Epistemic NP Modifiers

The paper considers participles such as "unknown", "identified" and "unspecified", which in sentences such as "Solange is staying in an unknown hotel" have readings equivalent to an indirect question "Solange is staying in a hotel, and it is not known which hotel it is." We discuss phenomena including disambiguation of quantifier scope and a restriction on the set of determiners which allow the reading in question. Epistemic modifiers are analyzed in a DRT framework with file (information state) discourse referents. The proposed semantics uses a predication on files and discourse referents which is related to recent developments in dynamic modal predicate calculus. It is argued that a compositional DRT semantics must employ a semantic type of discourse referents, as opposed to just a type of individuals. A connection is developed between the scope effects of epistemic modifiers and the scope-disambiguating effect of "a certain".Comment: Final pre-publication version, 27 pages, Postscript. Final version appears in the proceedings of SALT VI

Clause-Type, Force, and Normative Judgment in the Semantics of Imperatives

I argue that imperatives express contents that are both cognitively and semantically related to, but nevertheless distinct from, modal propositions. Imperatives, on this analysis, semantically encode features of planning that are modally specified. Uttering an imperative amounts to tokening this feature in discourse, and thereby proffering it for adoption by the audience. This analysis deals smoothly with the problems afflicting Portner's Dynamic Pragmatic account and Kaufmann's Modal account. It also suggests an appealing reorientation of clause-type theorizing, in which the cognitive act of updating on a typed sentence plays a central role in theorizing about both its semantics and role in discourse

Thematic roles – universal, particular, and idiosyncratic aspects

Thematic Roles (or Theta-Roles) are theoretical constructs that account for a variety of well known empirical facts, which are more or less clearly delimited. In other words, Theta-Roles are not directly observable, but they do have empirical content that is open to empirical observation. The objective of the present paper is to sketch the nature and content of Theta-Roles, distinguishing their universal foundation as part of the language faculty, their language particular realization, which depends on the conditions of individual languages, and idiosyncratic properties, determined by specific information of individual lexical items

Layering in structural-functional grammars

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Natural Language Ontology

The aim of natural language ontology is to uncover the ontological categories and structures that are implicit in the use of natural language, that is, that a speaker accepts when using a language. This article aims to clarify what exactly the subject matter of natural language ontology is, what sorts of linguistic data it should take into account, how natural language ontology relates to other branches of metaphysics, in what ways natural language ontology is important, and what may be distinctive of the ontological categories and structures reflected in natural language

Attitude reports without complementation: The case of Amahuaca

Classic analyses of propositional attitude reports assume that attitude verbs compose with a clausal argument that expresses a proposition. I use original fieldwork data to demonstrate that Amahuaca (Panoan; Peru) attitude reports involve high adjunct switch-reference clauses rather than clausal complements to an attitude verb. This structure raises issues for the traditionally assumed compositional semantics of attitude reports. I present two potential analyses that do not require the verb to compose directly with a complement CP, ultimately arguing in favor of an analysis that aligns with proposals by Kratzer (2006) and Moulton (2015) that the internal arguments of attitude verbs are individuals with propositional content. Amahuaca therefore provides novel empirical support for this approach to the semantics of attitude reports

Situation types in complementation: Oromo attitude predication

Though languages show rich variation in the clausal embedding strategies employed in attitude reports, most mainstream formal semantic theories of attitudes assume that the clausal complement of an attitude verb contributes at least a proposition to the semantics. The goal of this paper is to contribute to the growing cross-linguistic perspective of attitudes by providing semantic analyses for the two embedding strategies found with attitude verbs in Oromo (Cushitic): verbal nominalization, and embedding under akka 'as'. We argue that Oromo exemplifies a system in which non-speech attitudes uniformly embed situations rather than propositions, thereby expanding the empirical landscape of attitude reports in two ways: (i) situations and propositions are both ontological primitives used by languages in the construction of attitude reports, and (ii) attitude verbs in languages like Oromo do the semantic heavy lifting, contributing the "proposition" to propositional attitudes