11570
Flare of Kaposi 's sarcoma ( KS ) is well described in immunosuppressed patients treated with corticosteroids and rituximab , but has not yet been reported during treatment with imatinib .
 adverse effect: Kaposi 's sarcoma, rituximab; adverse effect: KS, rituximab
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: Kaposi 's sarcoma, rituximab; adverse effect: KS, rituximab