68402
When RAD21 binds on both SMC1 and SMC3 , the cohesin complex forms a closed ring structure .
 location: SMC1; location: SMC3
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: SMC1, SMC3 
Answer:
 location: SMC1; location: SMC3