preferred_name: cocaine + H2O => ecgonine methyl ester + benzoate + H(+)
preferred_name_lc: cocaine + h2o => ecgonine methyl ester + benzoate + h(+)
label: cocaine + H2O => ecgonine methyl ester + benzoate + H(+)
label_lc: cocaine + h2o => ecgonine methyl ester + benzoate + h(+)