unit of volume used in the United States
ISO 80000-3:2006 Quantities and units — Part 3: Space and time
wd:Q32750621 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)