1983-03-08 was the introduction date of what computer?
Entity
m.03qvjb
IBM Personal Computer XT
class literal
computer.computer 1983-03-08^^http://www.w3.org/2001/XMLSchema#date
computer.computer type.datetime
Computer 1983-03-08
none none
computer.computer.introduced
Introduced
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.computer . 
VALUES ?x1 { "1983-03-08-08:00"^^<http://www.w3.org/2001/XMLSchema#date> } 
?x0 :computer.computer.introduced ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND computer.computer (JOIN computer.computer.introduced 1983-03-08^^http://www.w3.org/2001/XMLSchema#date))