label: 1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine = 1-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-N-(acetyl)-sphing-4-enine + 1-octadecanoyl-sn-glycero-3-phosphocholine
label_lc: 1-octadecanoyl-2-(5z,8z,11z,14z-eicosatetraenoyl)-sn-glycero-3-phosphocholine + n-(acetyl)-sphing-4-enine = 1-(5z,8z,11z,14z)-eicosatetraenoyl-n-(acetyl)-sphing-4-enine + 1-octadecanoyl-sn-glycero-3-phosphocholine