What is <has attribute> of <key> ?
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What has attribute of key ?
SELECT DISTINCT ?l WHERE { ?l property:iconographic_symbol resource:key }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject>  ?answer. ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4185> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q132041>. }
select distinct ?answer where { ?answer wdt:P4185 wd:Q132041}