label: 3-octadecanoyl-sn-glycero-1-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-1-phospho-(1'-sn-glycerol) => 2 3-octadecanoyl-sn-glycero-1-phospho-(1'-sn-glycerol)
label_lc: 3-octadecanoyl-sn-glycero-1-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-1-phospho-(1'-sn-glycerol) => 2 3-octadecanoyl-sn-glycero-1-phospho-(1'-sn-glycerol)