9201
However , re - initiation of sunitinib treatment was followed by bilateral breast enlargement again .
 adverse effect: bilateral breast enlargement, sunitinib
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  bilateral breast enlargement, sunitinib 
Answer:
 adverse effect: bilateral breast enlargement, sunitinib