What is the {Class IB flammable liquid} with the {MIN(boiling point)} whose {instance of} is {ester}  ?
With an instance of ester, and a minimum boiling point, which class IB liquid is also flammable?
What is the class IB flammable liquid with min boiling point whose instance is ester?
SELECT ?x WHERE { ?x property:boiling_point ?e . ?x rdf:type ontology:ester . . ?x rdf:type ontology:Class_IB_flammable_liquid }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q21009055>.

?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/P31> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q101487> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q21009055 . ?ent wdt:P2102 ?obj . ?ent wdt:P31 wd:Q101487. } ORDER BY ASC(?obj)LIMIT 5 
ethyl formate ethyl formate ethyl acetate ethyl formate methyl acetate