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