what is the {uncertainty corresponds to} for {tritium} has {mass excess} as {14949.8} ?
Which is the uncertainty that corresponds to tritium, which has a mass excess of 14949.8?
What is the uncertainty that corresponds to tritium, which has a mass excess of 14949.8?
SELECT ?b WHERE { ?e property:uncertainty_corresponds_to ?b . ?e property:mass_excess ?g . resource:tritium property:mass_excess ?e . FILTER ( ?g = 14949.8 ) }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q54389> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2160> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <14949.8> .
?statement <http://www.wikidata.org/entity/P2571> ?value. 
} 

SELECT ?value WHERE { wd:Q54389 p:P2160 ?s . ?s ps:P2160 ?x filter(contains(?x , '14949.8')) . ?s pq:P2571 ?value}