6581
Zidovudine induced pure red cell aplasia : a case report .
 adverse effect: pure red cell aplasia, Zidovudine
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:  pure red cell aplasia, Zidovudine 
Answer:
 adverse effect: pure red cell aplasia, Zidovudine