Difference between revisions of "SPARQL (intermediate)"

Revision as of 08:36, 18 January 2022

Draft

This page is a work in progress.

Tools

Lexemes Queries Generator

Federate queries

To query Lingualibre from Wikidata, use SERVICE <https://lingualibre.org/sparql>.
To query Wikidata from LinguaLibre, use SERVICE <https://query.wikidata.org/sparql>.

The following query shows a simple example of retrieving data of LinguaLibre from Wikidata Query Service. It lists the existing levels in LinguaLibre.

PREFIX prop: <https://lingualibre.org/prop/direct/>
PREFIX entity: <https://lingualibre.org/entity/>

SELECT * {
  SERVICE <https://lingualibre.org/sparql> {
    SELECT ?item ?itemLabel {
      ?item prop:P2 entity:Q5.
      SERVICE wikibase:label {bd:serviceParam wikibase:language "en".}
    }
  }
}

Languages

✅ Language () → List of LL languages with wd speaker population

Lexemes

✅ Language (d:Q12107) → List of wd lexemes

Example : Q12107 breton.

✅ Language () → List of wd lexemes with LL audio

✅ Language () → List of wd lexemes with LL audio and wd translation (d:Q150)

✅ Language () → List of wd lexemes (d:Q150)

Strange query from User:VIGNERON/common.js

SELECT DISTINCT ?lexemeLabel ?lexeme
WITH {
  SELECT ?lexeme ?lexemeLabel ?lexical_category WHERE {
    ?lexeme a ontolex:LexicalEntry ;
            dct:language wd:Q12107 ; 
            wikibase:lemma ?lexemeLabel .
    OPTIONAL {
      ?lexeme wikibase:lexicalCategory ?lexical_category .
    }
  }
} AS %results
WHERE {
  INCLUDE %results
  OPTIONAL {        
    ?lexical_category rdfs:label ?lexical_categoryLabel .
    FILTER (LANG(?lexical_categoryLabel) = "en")
  }
}

Speakers

✅ Speakers → Largest number of languages recorded and known

#Title: Speakers with recordings largest number of languages and known languages
SELECT ?speaker ?speakerLabel ?count ?languages
# Get audios, language, speaker triplet
WITH {
  SELECT DISTINCT ?speaker ?language {
    ?audio prop:P4 ?language;
           prop:P5 ?speaker.
  }
} AS %speakers
# Get the count of languages per each speaker
WITH {
  SELECT ?speaker (COUNT(?speaker) AS ?count) {
    INCLUDE %speakers.
  }
  GROUP BY ?speaker
  ORDER BY DESC(?count)
} AS %countOfLanguagesRecordedPerSpeaker
# Get the maximum number of languages per each speaker
WITH {
  SELECT (MAX(?count) AS ?maxNumberOfLanguagesRecorded) {
    INCLUDE %countOfLanguagesRecordedPerSpeaker.
  }
} AS %maxNumberOfLanguagesRecorded
# Get those speakers whose count equals the maximum number of languages
WITH {
  SELECT ?speaker ?count {
    INCLUDE %countOfLanguagesRecordedPerSpeaker.
    INCLUDE %maxNumberOfLanguagesRecorded.
    FILTER(?count = ?maxNumberOfLanguagesRecorded).
  }
} AS %speakersWithMostNumberOfLanguagesRecorded
# Get the languages of those speakers that have recorded audios in the
# most number of languages
WITH {
  SELECT ?speaker (GROUP_CONCAT(?languageLabel; SEPARATOR = ", ") AS ?languages) {
    INCLUDE %speakersWithMostNumberOfLanguagesRecorded.
    ?speaker prop:P4 [
        rdfs:label ?languageLabel
      ]
    FILTER(LANG(?languageLabel) = "en").
  }
  GROUP BY ?speaker
} AS %languagesOfSpeakersWithMostNumberOfLanguagesRecorded
{
  INCLUDE %speakersWithMostNumberOfLanguagesRecorded.
  INCLUDE %languagesOfSpeakersWithMostNumberOfLanguagesRecorded.
  ?speaker rdfs:label ?speakerLabel.
  FILTER(LANG(?speakerLabel) = "en")
}

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✅ Speakers → Countries with most speakers

SELECT ?country ?continentLabel ?ISO3 ?countryLabel (COUNT(?country) AS ?count)
WITH {
  SELECT DISTINCT ?speaker {
    ?speaker prop:P2 entity:Q3;
  }
} AS %speakers
WITH {
  SELECT DISTINCT
    ?speaker
    ?country
    ?countryLabel
    ?ISO3
    ?continentLabel
  {
    INCLUDE %speakers.
    ?speaker prop:P14 ?residence.
    # Avoids weird errors.
    FILTER(REGEX(?residence, "^Q[0-9]+$"))
    BIND(IRI(CONCAT('http://www.wikidata.org/entity/', ?residence)) AS ?residenceId)
    
    # Get country from wikidata
    SERVICE <https://query.wikidata.org/sparql> {
      ?residenceId wdt:P17 ?country.
      ?country rdfs:label ?countryLabel;
               wdt:P298 ?ISO3;
               wdt:P30 ?continent.
      ?continent rdfs:label ?continentLabel.
      FILTER(LANG(?countryLabel) = "en").
      FILTER(LANG(?continentLabel) = "en").
    }
  }
} AS %speakersWithCountries
{
  INCLUDE %speakersWithCountries.
}
GROUP BY ?country ?continentLabel ?ISO3 ?countryLabel
ORDER BY DESC(?count)