Alternace konstrukcí s aktorem a instrumentem v paralelním česko-anglickém závislostním korpusu
The actor instrument alternation in a parallel Czech-English dependency treebank

Summary/Abstract: This paper analyzes one type of valency structure difference in a bilingual, Czech-English valency lexicon and a parallel syntactically annotated treebank, namely the instances of instrument subject alternation, abstract cause subject alternation and locatum subject alternation (Levin 1993), roughly corresponding to three specific verb semantic classes. These alternations represent a problematic point of mutual alignment of valency structures in a parallel corpus and a bilingual valency lexicon because of the dual possible assignment of a semantic role to the position of a syntactic subject, and consequently, the dual interpretation of the deep-syntactic role of an actor. As a result, two different interpretations arise, an agentive one and a non-agentive one, which collide in the syntactically annotated data. The conflict of the two interpretations substantially influences the semantic interpretation of the “target of evaluation” in constructions involving evaluative verbs in sentiment analysis tasks. We discuss the problem through linking individual syntactic, semantic and situational participants, focusing both on the similarities and differences between the three alternation types in question, providing analogies to other known constructions, and studying them from the morphosyntactic, semantic and propositional content points of view.

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