21654
Polypeptides comprising each block component assemble into different morphologies , showing that the conjugation of poly ( VPGXG ) and poly ( VGGVG ) plays a role for beaded fiber formation .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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