% arachidonate


config(arachidonate,[
        chain([
                carboxyl(1),
                num(methandiyl,3),
                car(5,hyd)~~,
                car(6,hyd),
                methandiyl,
                car(8,hyd)~~,
                car(9,hyd),
                methandiyl,
                car(11,hyd)~~,
                car(12,hyd),
                methandiyl,
                car(14,hyd)~~,
                car(15,hyd),
                num(methandiyl,4),
                methyl]),
        cis(car(4),car(7),bond(car(5),car(6))),
        cis(car(7),car(10),bond(car(8),car(9))),
        cis(car(10),car(13),bond(car(11),car(12))),
        cis(car(13),car(16),bond(car(14),car(15)))]).