preferred_name: taurine + L-arginine => taurocyamine + L-ornithine
preferred_name_lc: taurine + l-arginine => taurocyamine + l-ornithine
label: taurine + L-arginine => taurocyamine + L-ornithine
label_lc: taurine + l-arginine => taurocyamine + l-ornithine