2538
We present a case in which dipyridamole induced high - grade atrioventricular ( AV ) block that responded promptly to intravenous aminophylline but not to atropine .
 adverse effect: high - grade atrioventricular ( AV ) block, dipyridamole
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: high - grade atrioventricular ( AV ) block, dipyridamole