What is the {elliptical galaxy} for {child astronomical body} of {Andromeda Galaxy}
What is the size of the Andromeda Galax ?
 select distinct ?obj where { wd:Q2469 wdt:P398 ?obj . ?obj wdt:P31 wd:Q184348 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2469> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P398> . ?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/Q184348> } 
How big is the Andromeda Galax?