which software used apple as protocol?
Entity
m.04kfn
LimeWire
class entity
computer.software m.0k8z
computer.software computer.protocol_provider
Software apple
none none
computer.software.service_network
Protocols Provider
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.software . 
VALUES ?x1 { :m.0k8z } 
?x0 :computer.software.service_network ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND computer.software (JOIN computer.software.service_network m.0k8z))