which star is the parent star of hd 102117?
Entity
m.04y5pfv
HD 102117 b
class entity
base.exoplanetology.exoplanet m.04j40q
base.exoplanetology.exoplanet astronomy.star
Exoplanet HD 102117
none none
base.exoplanetology.exoplanet.parent_star
Parent Star
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :base.exoplanetology.exoplanet . 
VALUES ?x1 { :m.04j40q } 
?x0 :base.exoplanetology.exoplanet.parent_star ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND base.exoplanetology.exoplanet (JOIN base.exoplanetology.exoplanet.parent_star m.04j40q))