label: a hepta-acyl lipid A + a 2-acyl-sn-glycero-3-phosphocholine => a lipid A + a 1,2-diacyl-sn-glycero-3-phosphocholine
label_lc: a hepta-acyl lipid a + a 2-acyl-sn-glycero-3-phosphocholine => a lipid a + a 1,2-diacyl-sn-glycero-3-phosphocholine