4010
CASE REPORT : A six - year - old boy with transfusion - dependent beta - thalassaemia developed a unilateral hearing loss shortly after commencing desferrioxamine therapy .
 adverse effect: unilateral hearing loss, desferrioxamine
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:  unilateral hearing loss, desferrioxamine 
Answer:
 adverse effect: unilateral hearing loss, desferrioxamine