2783
RESULTS : In a 22-year - old Thai woman with Graves ' disease , tinnitus , hearing impairment in the left ear ( with progression to the right ear ) , and vertigo developed after 3 years of therapy with PTU .
 adverse effect: hearing impairment in the left ear ( with progression to the right ear ), PTU; adverse effect: tinnitus, PTU; adverse effect: vertigo, PTU
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:  hearing impairment in the left ear ( with progression to the right ear ), PTU; tinnitus, PTU; vertigo, PTU 
Answer:
 adverse effect: hearing impairment in the left ear ( with progression to the right ear ), PTU; adverse effect: tinnitus, PTU; adverse effect: vertigo, PTU