The following query uses these:

• Items: file format (Q235557)     

• Properties: instance of (P31)     , subclass of (P279)     

  SELECT DISTINCT ?app ?appLabel 
  WHERE {
    ?app wdt:P31/wdt:P279* wd:Q235557.
  
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: programming language (Q9143)     

• Properties: instance of (P31)     , subclass of (P279)     

  SELECT DISTINCT ?item ?itemLabel 
  WHERE 
  {
    ?item wdt:P31/wdt:P279* wd:Q9143 .
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: keyboard layout (Q725744)     

• Properties: instance of (P31)     , subclass of (P279)     

  SELECT DISTINCT ?item ?itemLabel WHERE {
    ?item wdt:P31/wdt:P279* wd:Q725744.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Properties: ISO 3166-1 numeric code (P299)     

  SELECT ?item ?itemLabel ?value
  WHERE 
  {
    ?item wdt:P299 ?value.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: time zone named for a UTC offset (Q17272482)     

• Properties: instance of (P31)     

  SELECT DISTINCT ?item ?itemLabel ?itemAltLabel
  WHERE 
  {
    ?item wdt:P31 wd:Q17272482.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: language (Q34770)     

• Properties: instance of (P31)     , subclass of (P279)     , IETF language tag (P305)     

  SELECT DISTINCT ?item ?itemLabel ?code WHERE {
    ?item wdt:P31/wdt:P279* wd:Q34770.
    ?item wdt:P305 ?code.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: instruction set architecture (Q272683)     

• Properties: instance of (P31)     , subclass of (P279)     

  SELECT DISTINCT ?item ?itemLabel WHERE {
    ?item wdt:P31/wdt:P279* wd:Q272683.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: file system (Q174989)     

• Properties: instance of (P31)     , subclass of (P279)     

  SELECT ?item ?itemLabel 
  WHERE 
  {
    ?item wdt:P31/wdt:P279* wd:Q174989.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: audio and video interfaces and connectors (Q1153429)     

• Properties: instance of (P31)     

  SELECT ?item ?itemLabel 
  WHERE 
  {
    ?item wdt:P31 wd:Q1153429.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  

The following query uses these:

• Items: software (Q7397)     , business (Q4830453)     , organization (Q43229)     , library (Q7075)     , museum (Q33506)     

• Properties: instance of (P31)     , subclass of (P279)     , developer (P178)     

  SELECT DISTINCT
  ?dev ?devLabel
  WHERE 
  {
    ?item wdt:P31/wdt:P279* wd:Q7397.
    ?item wdt:P178 ?dev.
    ?dev wdt:P31/wdt:P279* ?class.
    VALUES ?class {wd:Q4830453 wd:Q43229 wd:Q7075 wd:Q33506}
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }