15173
A recent ion mobility - mass spectrometry ( IM - MS ) study of the nonapeptide bradykinin ( BK , amino acid sequence Arg ( 1 ) - Pro ( 2 ) - Pro ( 3 ) - Gly ( 4 ) - Phe ( 5 ) - Ser ( 6 ) - Pro ( 7 ) - Phe ( 8 ) - Arg ( 9 ) ) found evidence for 10 populations of conformations that depend upon the solution composition [ J . Am . Chem . Soc . 2011 , 133 , 13810 ] .
 Chemical: bradykinin; Chemical: amino acid; Chemical: Arg; Chemical: Pro; Chemical: Pro; Chemical: Gly; Chemical: Phe; Chemical: Ser; Chemical: Pro; Chemical: Phe; Chemical: Arg
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: bradykinin; Chemical: amino acid; Chemical: Arg; Chemical: Pro; Chemical: Pro; Chemical: Gly; Chemical: Phe; Chemical: Ser; Chemical: Pro; Chemical: Phe; Chemical: Arg