what is the uncompressed format of a digital camera that is manufactured by unknown?
Entity Entity Entity
m.03_2yh m.02n98_h m.08g1q1
Digital Negative None Raw image format
class class entity
digicams.camera_uncompressed_format digicams.digital_camera m.01xrf_0
digicams.camera_uncompressed_format digicams.digital_camera digicams.camera_sensor_manufacturer
Camera Uncompressed Format Digital Camera Unknown
none none none
digicams.digital_camera.uncompressed_formats digicams.camera_sensor_manufacturer.cameras
Uncompressed Formats Cameras
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 :digicams.camera_uncompressed_format . 
?x1 :type.object.type :digicams.digital_camera . 
VALUES ?x2 { :m.01xrf_0 } 
?x1 :digicams.digital_camera.uncompressed_formats ?x0 . 
?x2 :digicams.camera_sensor_manufacturer.cameras ?x1 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND digicams.camera_uncompressed_format (JOIN (R digicams.digital_camera.uncompressed_formats) (JOIN (R digicams.camera_sensor_manufacturer.cameras) m.01xrf_0)))