preferred_name: glycocholate + L-arginine => L-arginocholate + glycine
preferred_name_lc: glycocholate + l-arginine => l-arginocholate + glycine
label: glycocholate + L-arginine => L-arginocholate + glycine
label_lc: glycocholate + l-arginine => l-arginocholate + glycine