504
The fluorine contained in niflumic acid induced a marked densification of trabecular bone in all 3 cases .
 adverse effect: densification of trabecular bone, niflumic acid
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:  densification of trabecular bone, niflumic acid 
Answer:
 adverse effect: densification of trabecular bone, niflumic acid