What is the {coins of the United States dollar} with the {MAX(face value)} whose {material used} is {copper}  ?
What is the face value of the copper - made U.S. coin?
What is the face value of the US coin that is made of copper?
SELECT ?u WHERE { ?u property:made_from_material resource:copper . ?u rdf:type ontology:coin_of_the_United_States_dollar . ?u property:face_value ?r }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q3253199>.

?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3934>.
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj1.

?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P186> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q753> .

}
ORDER BY DESC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q3253199 . ?ent wdt:P3934 ?obj . ?ent wdt:P186 wd:Q753 } ORDER BY DESC(?obj)LIMIT 5 