preferred_name: L-canavanine + L-ornithine = L-canaline + L-arginine + H(+)
preferred_name_lc: l-canavanine + l-ornithine = l-canaline + l-arginine + h(+)
label: L-canavanine + L-ornithine = L-canaline + L-arginine + H(+)
label_lc: l-canavanine + l-ornithine = l-canaline + l-arginine + h(+)