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Thrombin is highly effective for stopping intractable arterial hemorrhage during stereotactic brain biopsy ; however , it is a vasospastic agent and may have been responsible for the cerebral infarctions in one patient .
 adverse effect: cerebral infarctions, Thrombin
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: cerebral infarctions, Thrombin