Comfort is a type of Condition. Condition is related to Fever. Fever is a type of Symptom. Symptom is a synonym of Indication. 
Comment is a type of Statement. Condition is a type of Statement. Condition is related to Medical. 
Comfort --IsA--> Condition <--RelatedTo--> Fever --IsA--> Symptom <--Synonym--> Indication 
Comment --IsA--> Statement <--IsA-- Condition <--RelatedTo--> Medical 