12333
The mechanism of RTA induced by FK506 has not yet been clearly elucidated .
 adverse effect: RTA, FK506
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:  RTA, FK506 
Answer:
 adverse effect: RTA, FK506