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The third patient had been suffering from serious akathisia while on risperidone , and was cured after switching to olanzapine , but thereafter the patient suffered from RLS at nighttime .
 adverse effect: akathisia, olanzapine; adverse effect: akathisia, risperidone; adverse effect: RLS, olanzapine; adverse effect: RLS, risperidone
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:  akathisia, olanzapine; akathisia, risperidone; RLS, olanzapine; RLS, risperidone 
Answer:
 adverse effect: akathisia, olanzapine; adverse effect: akathisia, risperidone; adverse effect: RLS, olanzapine; adverse effect: RLS, risperidone