2817
Hydroxyurea ( HU ) and sodium phenylbutyrate ( SPB ) have been shown to increase fetal hemoglobin ( Hb F ) levels in patients with thalassemia intermedia .
 adverse effect: increase fetal hemoglobin, Hydroxyurea; adverse effect: increase fetal hemoglobin, sodium phenylbutyrate
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: increase fetal hemoglobin, Hydroxyurea; adverse effect: increase fetal hemoglobin, sodium phenylbutyrate