% prephenate


config(prephenate,[
        ring([
                car(1,carboxyl(7)&& (car(8,hyd&&hyd&& (keto(9,carboxyl(10))~))~)),
                car(2,hyd)~~,
                car(3,hyd),
                car(4,hyd&&hydroxyl),
                car(5,hyd)~~,
                car(6,hyd)])]).