find clouds that is a member of altocumulus cloud
Entity Entity Entity Entity Entity
m.0dbs8_ m.079mcl m.0dbvf9 m.0327d7 m.04_lxg
Altostratus undulatus Altocumulus mackerel sky Altocumulus undulatus Altocumulus lenticularis Altocumulus castellanus
class entity
meteorology.cloud m.016839
meteorology.cloud meteorology.cloud
Cloud altocumulus cloud
none none
meteorology.cloud.cloud_family
Cloud Family
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 :meteorology.cloud . 
VALUES ?x1 { :m.016839 } 
?x0 :meteorology.cloud.cloud_family ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND meteorology.cloud (JOIN meteorology.cloud.cloud_family m.016839))