query-4ac0e4974ff080f04653b0f09f151c82

rq turtle/ttl

subclass of (P279),  instance of (P31): Properties ]reply[22:12, 3 July 2017 (UTC)) talk (d1g]reply[22:22, 3 July 2017 (UTC)) talk (ArthurPSmith. You could also create a "isotope of antihydrogen" class and add antiproton to that also. The proton and neutron numbers are wrong - they should either not be there at all or should be -1. We also have 5 items as result of following selection:

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT DISTINCT ?item ?itemLabel WHERE {
  ?item (wdt:P31|wdt:P279)/wdt:P279+ wd:Q25276
  MINUS 
  { ?item wdt:P279/wdt:P279 wd:Q25276 }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?item"):::projected a1((" ")) a2((" ")) c5(["bd:serviceParam"]):::iri c3(["wd:Q25276"]):::iri c7(["#91;AUTO_LANGUAGE#93;,en"]):::literal subgraph union0[" Union "] subgraph union0l[" "] style union0l fill:#abf,stroke-dasharray: 3 3; v1 --"wdt:P279"--> a1 end subgraph union0r[" "] style union0r fill:#abf,stroke-dasharray: 3 3; v1 --"wdt:P31"--> a1 end union0r <== or ==> union0l end a1 --"wdt:P279"--> c3 subgraph minus0["MINUS"] style minus0 stroke-width:6px,fill:pink,stroke:red; v1 --"wdt:P279"--> a2 a2 --"wdt:P279"--> c3 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c5 --"wikibase:language"--> c7 end