preferred_name: nitrate(in) + 2 Na(+)(in) => nitrate(out) + 2 Na(+)(out)
preferred_name_lc: nitrate(in) + 2 na(+)(in) => nitrate(out) + 2 na(+)(out)
label: nitrate(in) + 2 Na(+)(in) => nitrate(out) + 2 Na(+)(out)
label_lc: nitrate(in) + 2 na(+)(in) => nitrate(out) + 2 na(+)(out)