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Something that can read HDF\n  UNION\n  { ?x wdt:P1073 wd:Q1069215 . }       # Something that can write HDF\n  \n  OPTIONAL { ?x wdt:P856 ?url. }       # Official website\n\n  SERVICE wikibase:label { bd:serviceParam wikibase:language \"[AUTO_LANGUAGE],en\". }\n}\n```\n[Try it!](https://query.wikidata.org/#SELECT%20DISTINCT%20%3Fx%20%3FxLabel%20%3Furl%20WHERE%20%7B%0A%20%20%7B%20%3Fx%20wdt%3AP1072%20wd%3AQ1069215%20.%20%7D%20%20%20%20%20%20%20%23%20Something%20that%20can%20read%20HDF%0A%20%20UNION%0A%20%20%7B%20%3Fx%20wdt%3AP1073%20wd%3AQ1069215%20.%20%7D%20%20%20%20%20%20%20%23%20Something%20that%20can%20write%20HDF%0A%20%20%0A%20%20OPTIONAL%20%7B%20%3Fx%20wdt%3AP856%20%3Furl.%20%7D%20%20%20%20%20%20%20%23%20Official%20website%0A%0A%20%20SERVICE%20wikibase%3Alabel%20%7B%20bd%3AserviceParam%20wikibase%3Alanguage%20%22%5BAUTO_LANGUAGE%5D%2Cen%22.%20%7D%0A%7D)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhdfgroup%2Fwikidata","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhdfgroup%2Fwikidata","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhdfgroup%2Fwikidata/lists"}