22703
Mass balance data and in vivo metabolite characterization obtained after administration of [ ( 14 ) C ] AMG 221 to rat showed that AMG 221 was completely absorbed from the gut lumen following an oral dose , primarily excreted in urine and was almost completely metabolized prior to excretion .
 Chemical: [ ( 14 ) C ] 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: [ ( 14 ) C ] AMG 221; Chemical: AMG 221