comment
| -
```
{
"proto": {
"id": "?id",
"label": "$rdfs:label$required",
"identifier": "$dc:identifier$required",
"production": {
"id": "?production",
"material": "$ecrm:P126_employed/skos:prefLabel$var:?__material$lang",
"location": {
"id": "$ecrm:P8_took_place_on_or_within$required",
"type": "$geonames:featureCode$required",
"label": "$geonames:name$var:?__location$required",
"lat": "$geo:lat$required",
"long": "$geo:long$required",
"country": "$geonames:parentCountry/geonames:name$var:?__country"
},
"technique": "$ecrm:P32_used_general_technique/skos:prefLabel$var:?__technique$lang",
"time": "?__time$lang",
"category": {
"id": "?assignedGroup",
"label": "?assignedGroupLabel"
}
}
},
"$where": [
"?id a ecrm:E22_Man-Made_Object",
"?production ecrm:P108_has_produced ?id",
"OPTIONAL { ?typ ecrm:P41_classified ?id; silk:L4|silk:L1 ?digTypeAssigned . ?assignedGroup skos:member ?digTypeAssigned . ?assignedGroup skos:prefLabel ?assignedGroupLabel }",
"{ ?production ecrm:P4_has_time-span/ecrm:P86_falls_within ?ts} UNION { ?production ecrm:P4_has_time-span ?ts }",
"?ts skos:inScheme <http://vocab.getty.edu/aat/>",
"?ts skos:prefLabel ?__time"
],
"$prefixes": {
"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
"crmdig": "http://www.ics.forth.gr/isl/CRMext/CRMdig.rdfs/",
"ecrm": "http://erlangen-crm.org/current/",
"dc": "http://purl.org/dc/elements/1.1/",
"geo": "http://www.w3.org/2003/01/geo/wgs84_pos#",
"geonames": "http://www.geonames.org/ontology#",
"skos": "http://www.w3.org/2004/02/skos/core#",
"silk": "http://data.silknow.org/ontology/property/"
},
"$lang": "en",
"$langTag": "hide"
}
```
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