What is the {chemical compound} with the {MIN(global-warming potential)} whose {has part} is {carbon}  ?
what chemical has the least greenhouse potency?
What chemical compound that's part carbon has the least global-warming potential?
SELECT ?d WHERE { ?d property:global_warming_potential ?o . ?d rdf:type ontology:chemical_compound . ?d property:has_part resource:carbon }
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/P2565>.
?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/Q623> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P2565 ?obj . ?ent wdt:P527 wd:Q623} ORDER BY ASC(?obj)LIMIT 5 
1,2-dichloroethane tetrafluoroethylene hexafluoropropylene Novec 1230 methyl bromide