PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
#Reference: https://www.wikidata.org/wiki/Wikidata:WikiProject_COVID-19/Data_models/COVID-19_apps
start = @<contacttracingapp>
<contacttracingapp> EXTRA wdt:P31 {
wdt:P31 [ wd:Q89288125 ] ;# instance of a COVID-19 contact tracing application
wdt:P1476 LITERAL* ;#title
wdt:P366 .* ;#use
wdt:P123 .{1} ;#publisher
wdt:P178 .* ;#developers
wdt:P495 .* ;#country of origin
wdt:P306 .* ;#operating system
wdt:P856 .* ;#official website
wdt:P577 .? ;#publication date
wdt:P5008 .* ;#on focus list of Wikimedia project
}