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EN
This paper introduces some major conceptual enhancements to the morphological annotation of the SYN series corpora of the Czech National Corpus. Apart from minor changes in tokenization and in the positional tagset, three major conceptual changes have been applied which affect the representation of various lexical and grammatical patterns. In the paper, we present the actual impact of the changes in linguistic data and search for possibilities in three linguistic areas. First, the treatment of phonic, graphemic, and morphological variants via a two-tier lemma structure is discussed; second, a new approach to periphrastic verb forms, auxiliaries, participles and the interpretation of verbal grammatical categories through a new attribute, called verbtag, is explained; and third, a complex multi-value treatment of multiword tokens is introduced.
EN
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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