3567
This is the first description , to our knowledge , of ductopenia apparently caused by clindamycin .
 adverse effect: ductopenia, clindamycin
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:  ductopenia, clindamycin 
Answer:
 adverse effect: ductopenia, clindamycin