preferred_name: guanosine(out) + Na(+)(out) = guanosine(in) + Na(+)(in)
preferred_name_lc: guanosine(out) + na(+)(out) = guanosine(in) + na(+)(in)
label: guanosine(out) + Na(+)(out) = guanosine(in) + Na(+)(in)
label_lc: guanosine(out) + na(+)(out) = guanosine(in) + na(+)(in)