What is the {chemical compound} with the {MIN(speed of sound)} whose {has part} is {hydrogen}  ?
What is the hydrogen chemical compund with the least speed of sound?
Give the chemical compound with the least speed of sound who is part hydrogen?
SELECT ?i WHERE { ?i rdf:type ontology:chemical_compound . ?i property:has_part resource:hydrogen . . ?i property:speed_of_sound ?v }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q11173>.

?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/P2075>.
?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/P527> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q556> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P2075 ?obj . ?ent wdt:P527 wd:Q556. } ORDER BY ASC(?obj)LIMIT 5 
hydrogen iodide hydrogen bromide hydrogen sulfide hydrogen chloride Ammonia