which programming language has the parent language of forth?
Entity Entity Entity Entity
m.028d3s m.02214q3 m.02m_jv m.02214px
colorForth Forth-83 MUF Forth-79
class entity
computer.programming_language m.02z81
computer.programming_language computer.programming_language
Programming Language Forth
none none
computer.programming_language.parent_language
Parent Language
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.programming_language . 
VALUES ?x1 { :m.02z81 } 
?x0 :computer.programming_language.parent_language ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND computer.programming_language (JOIN computer.programming_language.parent_language m.02z81))