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Fatty acid composition revealed that the degree of saturation increased with increasing Cd stress and PO ( 4 ) ( 3 - ) limitation .
 Chemical: Fatty acid; Chemical: Cd; Chemical: PO ( 4 ) ( 3 - )
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: Fatty acid; Chemical: Cd; Chemical: PO ( 4 ) ( 3 - )