label: a 1-O-(1Z-alkenyl)-sn-glycero-3-phosphoethanolamine + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-O-(1Z)-alkenyl-2-hexadecanoyl-sn-glycero-3-phosphoethanolamine + sn-glycerol 3-phosphocholine
label_lc: a 1-o-(1z-alkenyl)-sn-glycero-3-phosphoethanolamine + 1-hexadecanoyl-sn-glycero-3-phosphocholine = 1-o-(1z)-alkenyl-2-hexadecanoyl-sn-glycero-3-phosphoethanolamine + sn-glycerol 3-phosphocholine