name the astronaut that spent 256894.0 total hours for space missions?
Entity
m.0b8w69
Douglas H. Wheelock
class literal
spaceflight.astronaut 256894.0^^http://www.w3.org/2001/XMLSchema#float
spaceflight.astronaut type.float
Astronaut 256894.0
none none
spaceflight.astronaut.space_time_minutes
Space Time
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 :spaceflight.astronaut . 
VALUES ?x1 { "256894.0"^^<http://www.w3.org/2001/XMLSchema#float> } 
?x0 :spaceflight.astronaut.space_time_minutes ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND spaceflight.astronaut (JOIN spaceflight.astronaut.space_time_minutes 256894.0^^http://www.w3.org/2001/XMLSchema#float))