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<Paper uid="E91-1034">
  <Title>SEMANTIC FEATURES AND SELECTION RESTRICTIONS</Title>
  <Section position="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1.LEXICAL DATABASE OF THE
SYSTEM
</SectionTitle>
    <Paragraph position="0"> LEXICOGRAPllER is an expert system designed, in the first place, for the purposes of natural language processing. The work on the project is being conducted by a group of researchers including E.Belorusova, S.Krylov, E.Rakhilina, M.Filipenko e.a.; cf. Paduchcva,Rakhilina 1989.</Paragraph>
    <Paragraph position="1"> The system consists of two basic components: -- lexical database (LBD); -- bibliographical database (BBD).</Paragraph>
    <Paragraph position="2"> LBD is a vocabulary presented in a machine readable form and consisting of several domaines, as in a usual relational database. The user may get information about morphology, syntactic features, semantic features, prosody and referential features of individual iexical items. Among the semantic features that are included or must be included in the database there are such features as: \[ + Speech act verb\], \[ + Performative verb\], \[ + Verb of motion\], \[ + Kinship term\], \]+Part of the body\], \[+Person (as opposed to a physical body)\], \[+Parameter\], etc., all in all -several dozen features.</Paragraph>
    <Paragraph position="3"> Programs now existing g{ve the following options: -- marking the vocabulary by a feature presented as a list of words; -- compiling lists of words possessing a common feature or a set of features named; compiling lists of documents containing information about the lexeme named, as well as about a given feature or a set of features; compiling alphabetical lists of words and features mentioned in the BBD; such lists may play, for the user, the role of a catalog representing the running state of the BBD.</Paragraph>
    <Paragraph position="4"> In the BBD for every lexeme or semantic feature all the documents are mentioned that contain some lexicographically useful information about that lexeme or feature. In contradistinction to all the existing bibliographic catalogs, our BBD contains bibliographic information about individual lexemes, cf.Krylov 198~).</Paragraph>
    <Paragraph position="5"> The vocabulary consists of some 12.500 words.</Paragraph>
    <Paragraph position="6"> Morphological information is taken from the dictionary Zalizniak 1977.</Paragraph>
    <Paragraph position="7"> As for syntactic and semantic information, usually it cannot be found in existing dictionaries.</Paragraph>
  </Section>
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