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