what is the operating system that includes freebsd and supports the powerpc?
Entity
m.055yr
OS X
class entity entity
computer.operating_system m.0620f m.02ydx
computer.operating_system computer.computer_processor computer.operating_system
Operating System PowerPC FreeBSD
none none none
computer.operating_system.supported_architectures computer.operating_system.includes_os_versions
Supported Architectures Includes OS Versions
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 :computer.operating_system . 
VALUES ?x1 { :m.0620f } 
VALUES ?x2 { :m.02ydx } 
?x0 :computer.operating_system.supported_architectures ?x1 . 
?x2 :computer.operating_system.includes_os_versions ?x0 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND computer.operating_system (AND (JOIN computer.operating_system.supported_architectures m.0620f) (JOIN (R computer.operating_system.includes_os_versions) m.02ydx)))