8198
Until the last decade , two unrelated aldehyde dehydrogenase ( ALDH ) superfamilies , i . e . the phosphorylating and non - phosphorylating superfamilies , were known to catalyze the oxidation of aldehydes to activated or non - activated acids .
 Chemical: aldehyde; Chemical: aldehydes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: aldehyde; Chemical: aldehydes