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