label: 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycerol + H2O => 2-(9Z-octadecenoyl)-glycerol + octadecanoate + H(+)
label_lc: 1-octadecanoyl-2-(9z-octadecenoyl)-sn-glycerol + h2o => 2-(9z-octadecenoyl)-glycerol + octadecanoate + h(+)