label: a 1-acyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + H2O <=> 2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + a fatty acid + H(+)
label_lc: a 1-acyl-2-(9z-octadecenoyl)-sn-glycero-3-phosphate + h2o <=> 2-(9z-octadecenoyl)-sn-glycero-3-phosphate + a fatty acid + h(+)