What is the {isotope of osmium} with the {MAX(mass excess)} whose {decays to} is {tungsten-159}  ?
Which osmium Isotope has the most excess into tungsten-159?
Which Isotope of osmium has both the most excess mass and decays into tungsten-159?
SELECT ?k WHERE { ?k property:mass_excess ?t . ?k property:decays_to resource:tungsten-159 . ?k rdf:type ontology:isotope_of_osmium }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q1190207>.

?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/P2160>.
?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/P816> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q18882822> .

}
ORDER BY DESC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q1190207 . ?ent wdt:P2160 ?obj . ?ent wdt:P816 wd:Q18882822 } ORDER BY DESC(?obj)LIMIT 5 
osmium-163