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This thesis deals with expressions consisting of two noun phrases connected by a comitative preposition, referred to as comitative constructions (CCs). It focuses on CCs in Polish, with some comparisons to other languages, and provides an analysis at the morphosyntax-semantics-pragmatics interface in the paradigm of Head-Driven Phrase Structure Grammar with the integrated model-theoretic semantic framework of Lexicalized Flexible Ty2. After postulating three different readings of Polish CCs: accompanitive, conjunctive and (open and closed) inclusive, a number of semantic phenomena are discussed which provide evidence for this classification. Further examination of the data shows that all CC types behave uniformly with regard to their syntactic properties but exhibit differences regarding agreement and person, number and gender resolution. These differences have previously been explained by syntactic stipulations. This thesis argues that a syntactic approach to CCs lacks real empirical motivation and it demonstrates that some of the existing analyses are problematic for a number of empirical and / or theoretical reasons. It further offers an alternative analysis based on the assumption that all CC types have a uniform, adjunctionbased syntactic structure, and that the crucial differences between them are semantic in nature, being triggered by the meaning of the comitative preposition. The core of the proposed semantic analysis are three different logical representations of the comitative preposition, whose truth conditions allow us to make the right predictions about the different behavior of the three CC types. All other lexical components of CCs, including plural pronouns, bear in each type of CC their customary forms and meanings. Implementing this idea in a constraint-based framework whose description language incorporates a formal semantic representation language, and modeling the morphosyntactic, semantic, pragmatic and referential properties of CCs within a single grammatical paradigm, we arrive at an analysis that accounts for these expressions in a very natural way.
Understanding the design of talk-in-interaction is important in many domains, including speech technology. Although phonetic, linguistic and gestural correlates have been identified for some of the social actions that conversational participants accomplish, it is only recently that researchers have begun to take account of the immediately prior interactional context as an important factor influencing the design of a speaker’s turn. The present study explores the influence of context by focussing on characteristics of short turns produced by one speaker between turns from another speaker. The hypothesis is that the speaker designs her inserted turn as a match to the prior turn when wishing to align with the previous speaker’s agenda. By contrast, non-matching would display that the speaker is non-aligning, preferring instead to initiate a new action for example. Data are taken from the AMI corpus, focussing on the spontaneous talk of first-language English participants. Using sequential analysis, such short turns are classified as either aligning or non-aligning in accordance with definitions in the Conversation Analysis literature. The degree of prosodic similarity between the inserted turn and the prior speaker’s turn is measured using novel acoustic techniques. The results show that aligning turns are significantly more similar to the immediately preceding turn, in terms of pitch contour, than non-aligning turns. In contrast to the prosodic-acoustic analysis, the results of the gestural analysis indicate that aligning and non-aligning are differentiated by the use of distinct gestures, rather than by the matching (or non-matching) of gestures across the adjacent turns. These results support the view that choice of pitch contour is managed locally, rather than by reference to an intonational lexicon. However, this is not the case for speakers’ use of gesture. The implications of these findings for a model of talk-in-interaction are considered, along with potential applications.