3976
A 52 year - old male patient diagnosed of ankylosing spondylitis presented with an iron deficiency anemia after a ten - month treatment of methotrexate .
 adverse effect: iron deficiency anemia, methotrexate
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: iron deficiency anemia, methotrexate