what liquor is made from barley and ferments for 18 years?
(AND distilled_spirits.distilled_spirit_type (AND (JOIN distilled_spirits.distilled_spirit_type.fermentation_base m.09gtx) (JOIN distilled_spirits.distilled_spirit_type.spirits (le distilled_spirits.distilled_spirit.age 18^^http://www.w3.org/2001/XMLSchema#integer))))