Borrow is a synonym of Use. Use is a synonym of Exercise. 
Painful is related to Burn. Flame is a type of Burn. Flame is related to Part. Part is related to Bullet. 
Borrow <--Synonym--> Use <--Synonym--> Exercise 
Painful <--RelatedTo--> Burn <--IsA-- Flame <--RelatedTo--> Part <--RelatedTo--> Bullet 