preferred_name: ethanolamine(out) + n H(+)(in) => ethanolamine(in) + n H(+)(out)
preferred_name_lc: ethanolamine(out) + n h(+)(in) => ethanolamine(in) + n h(+)(out)
label: ethanolamine(out) + n H(+)(in) => ethanolamine(in) + n H(+)(out)
label_lc: ethanolamine(out) + n h(+)(in) => ethanolamine(in) + n h(+)(out)