13796
The toxicity and plasma concentrations of ifosfamide , chloroacetaldehyde , and 4-hydroxyifosfamide were then determined over 24 h after a single 1.6 g / m2 dose of ifosfamide .
 adverse effect: toxicity, 4-hydroxyifosfamide; adverse effect: toxicity, chloroacetaldehyde; adverse effect: toxicity, ifosfamide; adverse effect: toxicity, ifosfamide
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:  toxicity, 4-hydroxyifosfamide; toxicity, chloroacetaldehyde; toxicity, ifosfamide; toxicity, ifosfamide 
Answer:
 adverse effect: toxicity, 4-hydroxyifosfamide; adverse effect: toxicity, chloroacetaldehyde; adverse effect: toxicity, ifosfamide; adverse effect: toxicity, ifosfamide