What is the {isotope of ruthenium} with the {MIN(natural abundance)} whose {subclass of} is {ruthenium}  ?
Which isotope of ruthenium is rarest in nature?
Name the isotope of ruthenium least abundant in nature ?
SELECT ?v WHERE { ?v property:natural_abundance ?h . ?v rdf:type ontology:isotope_of_ruthenium . ?v rdf:type ontology:ruthenium }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q1374122>.

?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/P2374>.
?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/Q1086> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q1374122 . ?ent wdt:P2374 ?obj . ?ent wdt:P279 wd:Q1086} ORDER BY ASC(?obj)LIMIT 5 
ruthenium-98 ruthenium-96 ruthenium-100 ruthenium-99 ruthenium-101