What is the {solvent} with the {MIN(Mohs' hardness)} whose {instance of} is {food ingredient}  ?
What solvent with the lowest Mohs' hardness is also a food ingredient?
What is the solvent with the lowest Mohs' hardness whose instance of is food ingredient ?
SELECT ?z WHERE { ?z rdf:type ontology:solvent . ?z property:Mohs'_hardness ?p . ?z rdf:type ontology:food_ingredient . }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q146505>.

?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/P1088>.
?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/Q25403900> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q146505 . ?ent wdt:P1088 ?obj . ?ent wdt:P31 wd:Q25403900. } ORDER BY ASC(?obj)LIMIT 5 