What is the {Class IIIA combustible liquid} with the {MAX(boiling point)} whose {described by source} is {Small Brockhaus and Efron Encyclopedic Dictionary}  ?
What is the Class IIIA combustible liquid with the highest boiling point whose described by source is Small Brockhaus and Efron Encyclopedic Dictionary ?
select ?ent where { ?ent wdt:P31 wd:Q21009058 . ?ent wdt:P2102 ?obj . ?ent wdt:P1343 wd:Q19180675 } ORDER BY DESC(?obj)LIMIT 5 
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q21009058>.

?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/P2102>.
?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/P1343> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q19180675> .

}
ORDER BY DESC(?obj1)
LIMIT 5
What Class IIIA combustible liquid has the highest boiling point?