Express is a type of Convey. Express is related to Train. Train is a synonym of Educate. 
Bullet is related to Pin. Pin is a type of Leg. Leg is a type of Cut. Cut is related to Open. 
Convey <--IsA-- Express <--RelatedTo--> Train <--Synonym--> Educate 
Bullet <--RelatedTo--> Pin --IsA--> Leg --IsA--> Cut <--RelatedTo--> Open 