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Ingested polyphosphates are degraded by phosphatase enzymes to monophosphates , substances that are over - the - counter bowel purgatives .
 Chemical: polyphosphates; Chemical: monophosphates
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: polyphosphates; Chemical: monophosphates