I am looking through xml file of opencorpora.org and trying to understand their meaning. Here is an example:

<sentence id="23847">
                <source>это просто прекрасно по-моему.</source>
                <tokens>
                    <token id="434143" text="это">
                        <tfr t="это" rev_id="4440916">
                            <v>
                                <l id="386574" t="это">
                                    <g v="PRCL"></g>
                                </l>
                            </v>
                            <v>
                                <l id="386575" t="это">
                                    <g v="NPRO"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                    <g v="nomn"></g>
                                </l>
                            </v>
                            <v>
                                <l id="386575" t="это">
                                    <g v="NPRO"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                    <g v="accs"></g>
                                </l>
                            </v>
                            <v>
                                <l id="386581" t="этот">
                                    <g v="ADJF"></g>
                                    <g v="Subx"></g>
                                    <g v="Apro"></g>
                                    <g v="Anph"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                    <g v="nomn"></g>
                                </l>
                            </v>
                            <v>
                                <l id="386581" t="этот">
                                    <g v="ADJF"></g>
                                    <g v="Subx"></g>
                                    <g v="Apro"></g>
                                    <g v="Anph"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                    <g v="accs"></g>
                                </l>
                            </v>
                        </tfr>
                    </token>
                    <token id="434144" text="просто">
                        <tfr t="просто" rev_id="1267522">
                            <v>
                                <l id="285025" t="просто">
                                    <g v="ADVB"></g>
                                    <g v="Prdx"></g>
                                </l>
                            </v>
                            <v>
                                <l id="285026" t="просто">
                                    <g v="PRCL"></g>
                                </l>
                            </v>
                            <v>
                                <l id="285050" t="прост">
                                    <g v="ADJS"></g>
                                    <g v="Qual"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                </l>
                            </v>
                        </tfr>
                    </token>
                    <token id="434145" text="прекрасно">
                        <tfr t="прекрасно" rev_id="1267523">
                            <v>
                                <l id="267583" t="прекрасно">
                                    <g v="ADVB"></g>
                                </l>
                            </v>
                            <v>
                                <l id="267591" t="прекрасен">
                                    <g v="ADJS"></g>
                                    <g v="Qual"></g>
                                    <g v="neut"></g>
                                    <g v="sing"></g>
                                </l>
                            </v>
                        </tfr>
                    </token>
                    <token id="434146" text="по-моему">
                        <tfr t="по-моему" rev_id="1267524">
                            <v>
                                <l id="241289" t="по-моему">
                                    <g v="ADVB"></g>
                                </l>
                            </v>
                            <v>
                                <l id="241290" t="по-моему">
                                    <g v="CONJ"></g>
                                    <g v="Prnt"></g>
                                </l>
                            </v>
                        </tfr>
                    </token>
                    <token id="434147" text=".">
                        <tfr t="." rev_id="1267525">
                            <v>
                                <l id="0" t=".">
                                    <g v="PNCT"></g>
                                </l>
                            </v>
                        </tfr>
                    </token>
                </tokens>
            </sentence>

Anybody knows why это has multiple tags? What does other tags mean such as:

<g v="ADJS"></g>
<g v="Qual"></g>
<g v="neut"></g>
<g v="sing"></g>

migrated from russian.stackexchange.com Sep 10 '17 at 19:28

This question came from our site for students, teachers, and linguists wanting to discuss the finer points of the Russian language.

up vote 2 down vote accepted

They call it "gramemes". They roughly can be described tags.

The full list of these is located here, and the description (pretty vague) is in column #4 "Описание" ("Description").

The "gramemes" in question are (sequential numbers from table above):

  • ADJS #4 "adjective/short"
  • Qual #59 qualitative
  • neut #27 neuter gender
  • sing #30 singular
  • Thank you so much! Do you know why это has two contradictory tags: <g v="nomn"></g> and <g v="accs"></g>. Also why is этот mentioned? – user1700890 Sep 10 '17 at 22:02
  • 1
    @user1700890, (1) the project is based on community input and may not be free from human mistakes; (2) the Nominative and Accusative for the это have the same form — see the table here (don't ask me why they call it a noun there) – bytebuster Sep 10 '17 at 22:50
  • Thank you again! I totally understand human mistakes. It would be nice if they would explain meaning of their XML. Still why этот is present? – user1700890 Sep 10 '17 at 23:13
  • 1
    @user1700890, probably because это is Neuter while этот is Masculine. If they list all distinct word forms, this make a perfect sense. – bytebuster Sep 11 '17 at 17:56
  • 1
    @user1700890 They're saying that there are five possible parses: это could be the particle это, or two different forms of the pronoun это, or two different forms of the adjective этот. The convention is to list the masculine singular nominative as the "default" form of an adjective. – Draconis Sep 11 '17 at 23:55

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