801
Combining methylephedrine and Chinese herbal drugs might carry a risk of stroke .
 adverse effect: stroke, methylephedrine
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:  stroke, methylephedrine 
Answer:
 adverse effect: stroke, methylephedrine