sony corp and toshiba corporation invented what together?
Entity
m.029j_
DVD
class entity entity
law.invention m.06q07 m.0g7xx
law.invention law.inventor law.inventor
Invention sony corp toshiba corporation
none none none
law.inventor.inventions law.inventor.inventions
Inventions Inventions
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 :law.invention . 
VALUES ?x1 { :m.06q07 } 
VALUES ?x2 { :m.0g7xx } 
?x1 :law.inventor.inventions ?x0 . 
?x2 :law.inventor.inventions ?x0 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND law.invention (AND (JOIN (R law.inventor.inventions) m.06q07) (JOIN (R law.inventor.inventions) m.0g7xx)))