preferred_name: fumarate(out) + 3 Na(+)(out) => fumarate(in) + 3 Na(+)(in)
preferred_name_lc: fumarate(out) + 3 na(+)(out) => fumarate(in) + 3 na(+)(in)
label: fumarate(out) + 3 Na(+)(out) => fumarate(in) + 3 Na(+)(in)
label_lc: fumarate(out) + 3 na(+)(out) => fumarate(in) + 3 na(+)(in)