preferred_name: a 1,2-diacylglycerol + a 2-acyl-sn-glycero-3-phosphocholine => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine
preferred_name_lc: a 1,2-diacylglycerol + a 2-acyl-sn-glycero-3-phosphocholine => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine
label: a 1,2-diacylglycerol + a 2-acyl-sn-glycero-3-phosphocholine => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine
label_lc: a 1,2-diacylglycerol + a 2-acyl-sn-glycero-3-phosphocholine => a 2-acylglycerol + a 1,2-diacyl-sn-glycero-3-phosphocholine