What is the {powder} with the {MAX(emissivity)} whose {material used} is {limestone}  ?
Which limestone powder has the most potential to radiate energy?
Which limestone powder has the highest emissivity?
SELECT ?d WHERE { ?d rdf:type ontology:Powder . ?d property:made_from_material resource:limestone . ?d property:emissivity ?n }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q2908004>.

?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/P1295>.
?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/Q23757> .

}
ORDER BY DESC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q2908004 . ?ent wdt:P1295 ?obj . ?ent wdt:P186 wd:Q23757 } ORDER BY DESC(?obj)LIMIT 5 
cement