What is the {steel} with the {MIN(hardness)} whose {use} is {agribusiness}  ?
What type of steel used in agribusiness is the hardest?
What is the hardest steel used in agribusiness ?
SELECT ?b WHERE { ?b rdf:type ontology:steel . ?b property:use resource:agribusiness . . ?b property:hardness ?k }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q11427>.

?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/P5483>.
?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/P366> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q396622> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q11427 . ?ent wdt:P5483 ?obj . ?ent wdt:P366 wd:Q396622. } ORDER BY ASC(?obj)LIMIT 5 