preferred_name: an arylamine + acetyl-CoA = an N-acetylarylamine + CoA
preferred_name_lc: an arylamine + acetyl-coa = an n-acetylarylamine + coa
label: an arylamine + acetyl-CoA = an N-acetylarylamine + CoA
label_lc: an arylamine + acetyl-coa = an n-acetylarylamine + coa