3292
O - deethylation led to a nonradioactive compound and [ ( 18 ) F ] fluoroacetic acid .
 Chemical: O; Chemical: [ ( 18 ) F ] fluoroacetic acid
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: O; Chemical: [ ( 18 ) F ] fluoroacetic acid