6189
Benzocaine , an ester - type local anesthetic , was believed responsible for apparent methemoglobinemia in a cat .
 adverse effect: methemoglobinemia, Benzocaine
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:  methemoglobinemia, Benzocaine 
Answer:
 adverse effect: methemoglobinemia, Benzocaine