enter the Qid
The tables with the statememts refers to:
1. the source item, where the statement is located.
2. the value of the statement
3. instance of the statement value, if applicable.
4. if there is property Refers to (P18) is assigned, does it match with result
5. Does the instance is among allowed values assigned to the property.
Results for Q3
Warning: file_get_contents(https://query.competencebase.eu/proxy/wdqs/bigdata/namespace/wdq/sparql?query=SELECT+%3Fproperty+%3FpropertyLabel+%3FrefersTo%0AWHERE%0A%7B%0A+++%3Fproperty+a+wikibase%3AProperty+.%0A++%0A+++FILTER%28CONTAINS%28+STR%28%3Fproperty%29%2C+%22http%3A%2F%2Fcompetencebase.eu%2Fentity%2F%22+%29%29%0A++%0A++OPTIONAL+%7B%0A++%3Fproperty+wdt%3AP18+%3FrefersTo%0A++%0A++%7D%0A++SERVICE+wikibase%3Alabel+%7B+bd%3AserviceParam+wikibase%3Alanguage+%22%5BAUTO_LANGUAGE%5D%2Cen%22.+%7D%0A%7D): Failed to open stream: HTTP request failed! HTTP/1.1 502 Bad Gateway
in /www/doc/www.purkertlab.cz/www/competence/index.php on line 53
Fatal error: Uncaught TypeError: SPARQLQueryDispatcher::query(): Return value must be of type array, null returned in /www/doc/www.purkertlab.cz/www/competence/index.php:54
Stack trace:
#0 /www/doc/www.purkertlab.cz/www/competence/index.php(93): SPARQLQueryDispatcher->query('SELECT ?propert...')
#1 {main}
thrown in /www/doc/www.purkertlab.cz/www/competence/index.php on line 54