How many {parent astronomical body} are to/by {Jupiter} ?
How many parent astronomical bodies are there by Jupiter?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P397 wd:Q319 }
SELECT (COUNT(?sub) AS ?subs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?sub .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P397> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q319 .
} 

Jupiter contains how may parent astronomical bodies?