what is the meteor shower caused by 26p/grigg–skjellerup?
Entity
m.038q7z
Pi Puppids
class entity
astronomy.meteor_shower m.02tdwv
astronomy.meteor_shower astronomy.comet
Meteor Shower 26P/Grigg–Skjellerup
none none
astronomy.meteor_shower.source_of_meteor_shower
Source of meteor shower
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 :astronomy.meteor_shower . 
VALUES ?x1 { :m.02tdwv } 
?x0 :astronomy.meteor_shower.source_of_meteor_shower ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND astronomy.meteor_shower (JOIN astronomy.meteor_shower.source_of_meteor_shower m.02tdwv))