Question: What star has the least amount of magnitude and has a child astronomical body of 2012 CP8?
Paraphrase: What is the star with the least amount of magnitude and a child astronomical body of 2012 CP8?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q5864 . ?ent wdt:P1457 ?obj . ?ent wdt:P398 wd:Q13400719} ORDER BY ASC(?obj)LIMIT 5 
Answer: Sun