query-c4a9afe0f7925d7320bb0abca4ab5cdc

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX psv: <http://www.wikidata.org/prop/statement/value/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
#defaultView:ScatterChart
SELECT (YEAR(SAMPLE(?date)) as ?year) (SAMPLE(?diam) as ?diam1) (CONCAT(?itemLabel," ",SUBSTR(str(?item),32) ) as ?name) WHERE {
?item wdt:P31 wd:Q164992; wdt:P571 ?date; p:P2386/psv:P2386 ?valuenode. # astrolabes with a diameter property
?valuenode wikibase:quantityAmount ?length; wikibase:quantityUnit ?unit.
BIND(IF(?unit = wd:Q174728, ?length * 10,?length) as ?diam) # diameter in millimetres (unit is cm or mm)
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". ?item rdfs:label ?itemLabel }
} group by ?item ?itemLabel

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v8("?_anon_42b5416610844a34809f33a099ae9de185111"):::projected v2("?date") v6("?diam"):::projected v10("?diam1") v1("?item"):::projected v7("?itemLabel"):::projected v4("?length") v11("?name") v5("?unit") v3("?valuenode") v9("?year") a1((" ")) c9(["bd:serviceParam"]):::iri c11(["#91;AUTO_LANGUAGE#93;,en"]):::literal c2(["wd:Q164992"]):::iri v1 --"p:direct/P31"--> c2 v1 --"p:direct/P571"--> v2 v1 --"p:P2386"--> a1 a1 --"p:statement/value/P2386"--> v3 v3 --"wikibase:quantityAmount"--> v4 v3 --"wikibase:quantityUnit"--> v5 bind0[/"if(?unit = 'wd:Q174728',?length * '10^^xsd:integer',?length)"/] v5 --o bind0 v4 --o bind0 bind0 --as--o v6 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c9 --"wikibase:language"--> c11 v1 --"rdfs:label"--> v7 end bind3[/"sample(?date)"/] v2 --o bind3 bind3 --as--o v8 bind4[/"year-from-dateTime()"/] null --o bind4 bind4 --as--o v9 bind5[/"sample(?diam)"/] v6 --o bind5 bind5 --as--o v10 bind6[/"concat(?itemLabel,' ',substring(str(?item),'32^^xsd:integer'))"/] v7 --o bind6 v1 --o bind6 bind6 --as--o v11