query-d1475fcd7add7a432f92ee458b8abf12

rq turtle/ttl

in P570 meaning 'is still alive', which surprised me; and talked to a user who suggests that it is a reasonable way of encoding "is still alive" against a person item. As far as I can see, 69 items at the time of writing this have such a value. What do we make of this? Good, bad, indifferent? Thoughts please; thx. (P570)date of death I came across a in a

Use at

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wdno: <http://www.wikidata.org/prop/novalue/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX p: <http://www.wikidata.org/prop/>
select ?item ?dob where {  
  ?item wdt:P31 wd:Q5 . 
  optional {?item wdt:P569 ?dob.}
  ?item p:P570 [rdf:type wdno:P570] .}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?dob"):::projected v1("?item"):::projected a1((" ")) c2(["wd:Q5"]):::iri c5(["p:novalue/P570"]):::iri v1 --"p:direct/P31"--> c2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."p:direct/P569".-> v2 end a1 --"a"--> c5 v1 --"p:P570"--> a1