Bullet is related to Lead. Leader is derived from Lead. Leader is related to Speaker. 
Welcome is related to Door. Door is a synonym of Doorway. you are likely to find Doorway in/at/on Room. Room is related to Living. 
Bullet <--RelatedTo--> Lead <--DerivedFrom-- Leader <--RelatedTo--> Speaker 
Welcome <--RelatedTo--> Door <--Synonym--> Doorway --AtLocation--> Room <--RelatedTo--> Living 