4420
The first case concerns a 70-year - old man who developed severe aplastic anemia 7 weeks after treatment with 500 mg of ticlopidine daily .
 adverse effect: aplastic anemia, ticlopidine
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: aplastic anemia, ticlopidine