1793
DISCUSSION : This case shows that switching to zidovudine potentially can lead to a hyperlactatemia relapse .
 adverse effect: hyperlactatemia relapse, 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:  hyperlactatemia relapse, zidovudine 
Answer:
 adverse effect: hyperlactatemia relapse, zidovudine