preferred_name: melibiose(in) + Li(+)(in) = melibiose(out) + Li(+)(out)
preferred_name_lc: melibiose(in) + li(+)(in) = melibiose(out) + li(+)(out)
label: melibiose(in) + Li(+)(in) = melibiose(out) + Li(+)(out)
label_lc: melibiose(in) + li(+)(in) = melibiose(out) + li(+)(out)