6748
We report a myeloma patient who developed severe paralytic ileus during bortezomib therapy , which presented in the context of progressive constipation without other known causes and which regressed promptly with medical management after drug cessation , suggesting a direct causal relationship .
 adverse effect: severe paralytic ileus, bortezomib
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:  severe paralytic ileus, bortezomib 
Answer:
 adverse effect: severe paralytic ileus, bortezomib