22705
Hepatic bioavailability ( FH ) , measured in two animals at various time points after oral dose administration was somewhat variable but generally characterized by an initial reduction during the absorption phase followed by an increase during the elimination phase , consistent with hepatic distribution of AMG 221 .
 Chemical: AMG 221
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: AMG 221