What is the {operationalization} for {measured by} of {inertia}
How is inertia measured?
 select distinct ?obj where { wd:Q122508 wdt:P1880 ?obj . ?obj wdt:P31 wd:Q286017 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q122508> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1880> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q286017> } 
How is dormancy measured?