What is the {nuclear isomer} with the {MIN(neutron number)} whose {subclass of} is {bismuth}  ?
Which atomic isomer of bismuth has the slightest neutrons ?
Which nuclear isomer of bismuth has the least neutrons ?
SELECT ?l WHERE { ?l rdf:type ontology:bismuth . ?l property:neutron_number ?t . ?l rdf:type ontology:nuclear_isomer }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q846110>.

?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/P1148>.
?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/P279> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q942> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q846110 . ?ent wdt:P1148 ?obj . ?ent wdt:P279 wd:Q942} ORDER BY ASC(?obj)LIMIT 5 
bismuth-184m bismuth-185m bismuth-186m bismuth-187m1 bismuth-187m2