preferred_name: sucrose + H2O => glucose + fructose (Canis familiaris)
preferred_name_lc: sucrose + h2o => glucose + fructose (canis familiaris)
label: sucrose + H2O => glucose + fructose (Canis familiaris)
label_lc: sucrose + h2o => glucose + fructose (canis familiaris)