5282
Exogenous ( 13 ) C - FA was not detectable in the blood of rats either during or up to 30 min after the exposure .
 Chemical: ( 13 ) C - FA
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: ( 13 ) C - FA