What is the {chemical compound} with the {MIN(acceptable daily intake)} whose {instance of} is {chemical compound}  ?
What chemical compound has the least daily intake acceptability?
What is the chemical compound with the least acceptable daily intake?
SELECT ?y WHERE { ?y rdf:type ontology:chemical_compound . ?y rdf:type ontology:chemical_compound . ?y property:acceptable_daily_intake ?p }
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/P2542>.
?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/Q11173> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P2542 ?obj . ?ent wdt:P31 wd:Q11173} ORDER BY ASC(?obj)LIMIT 5 
pentachlorobenzene Brilliant Blue FCF