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