2649
RESULTS : Five of 70 patients who had begun leflunomide therapy had significant weight loss that could not be linked to other identifiable etiologies .
 adverse effect: weight loss, leflunomide
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:  weight loss, leflunomide 
Answer:
 adverse effect: weight loss, leflunomide