1469
Activin receptor - interacting protein 1 ( ARIP1 ) has been identified as a cytoplasmic protein that interacts with the type II receptor of activin ( ActRII ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None