preferred_name: urea + 2 H2O + H(+) => hydrogencarbonate + 2 NH4(+)
preferred_name_lc: urea + 2 h2o + h(+) => hydrogencarbonate + 2 nh4(+)
label: urea + 2 H2O + H(+) => hydrogencarbonate + 2 NH4(+)
label_lc: urea + 2 h2o + h(+) => hydrogencarbonate + 2 nh4(+)