preferred_name: a long-chain fatty acid + hnu + H(+) = a long-chain alkane + CO2
preferred_name_lc: a long-chain fatty acid + hnu + h(+) = a long-chain alkane + co2
label: a long-chain fatty acid + hnu + H(+) = a long-chain alkane + CO2
label_lc: a long-chain fatty acid + hnu + h(+) = a long-chain alkane + co2