14668
This progressed to tracheal compression with stridor after he had taken some aspirin for relief of the neck pain .
 adverse effect: tracheal compression, aspirin
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:  tracheal compression, aspirin 
Answer:
 adverse effect: tracheal compression, aspirin