How many {based on} are to/by {Astro Boy} ?
What is Astro Boy based on?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P144 wd:Q673036 }
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/P144> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q673036 .
} 

What subject is Astro Boy formulated on?