in the united states customary units, how many ways are there to measure volume?
Value
14
class entity
measurement_unit.volume_unit m.07y37
measurement_unit.volume_unit measurement_unit.measurement_system
Unit Of Volume united states customary units
count none
measurement_unit.measurement_system.volume_units
Volume Units
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 (COUNT(?x0) AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :measurement_unit.volume_unit . 
VALUES ?x1 { :m.07y37 } 
?x1 :measurement_unit.measurement_system.volume_units ?x0 . 
FILTER ( ?x0 != ?x1  )
}
}
(COUNT (AND measurement_unit.volume_unit (JOIN (R measurement_unit.measurement_system.volume_units) m.07y37)))