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Since the bronchospasm was relieved with discontinuation of propranolol and supportive bronchodilator therapy , the bronchospasm was believed to be caused by propranolol .
 adverse effect: bronchospasm, propranolol; adverse effect: bronchospasm, propranolol
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:  bronchospasm, propranolol; bronchospasm, propranolol 
Answer:
 adverse effect: bronchospasm, propranolol; adverse effect: bronchospasm, propranolol