us patent 5250534 has what drug form?
Entity Entity Entity
m.0hqn6b4 m.0hqpxxh m.0hqp30v
Revatio 20 film coated tablet Revatio 0.8 solution Revatio 20 film coated tablet
class entity
medicine.manufactured_drug_form m.0hqz8jq
medicine.manufactured_drug_form law.us_patent
Manufactured drug form US Patent 5250534
none none
medicine.manufactured_drug_form.patents
Patents
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 :medicine.manufactured_drug_form . 
VALUES ?x1 { :m.0hqz8jq } 
?x0 :medicine.manufactured_drug_form.patents ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND medicine.manufactured_drug_form (JOIN medicine.manufactured_drug_form.patents m.0hqz8jq))