19367
The C - terminal region of CPEB may participate in assembly of the ribonucleoprotein complex that includes the scaffold protein , Symplekin , and the cleavage and polyadenylation specificity factor .
 Chemical: C
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: C