this islands maximum length is 380.0?
Entity
m.0j9nr
Banks Island
class literal
geography.island 380.0^^http://www.w3.org/2001/XMLSchema#float
geography.island type.float
Island 380.0
none none
geography.island.max_length
Max. Length
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 :geography.island . 
VALUES ?x1 { "380.0"^^<http://www.w3.org/2001/XMLSchema#float> } 
?x0 :geography.island.max_length ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND geography.island (JOIN geography.island.max_length 380.0^^http://www.w3.org/2001/XMLSchema#float))