preferred_name: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + 2-hexadecanoyl-sn-glycero-3-phosphocholine => 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine + a 2-acyl-sn-glycero-3-phosphocholine
preferred_name_lc: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + 2-hexadecanoyl-sn-glycero-3-phosphocholine => 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine + a 2-acyl-sn-glycero-3-phosphocholine
label: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + 2-hexadecanoyl-sn-glycero-3-phosphocholine => 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine + a 2-acyl-sn-glycero-3-phosphocholine
label_lc: a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine + 2-hexadecanoyl-sn-glycero-3-phosphocholine => 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine + a 2-acyl-sn-glycero-3-phosphocholine