Leading is related to Captain. Captain is related to Man. Spokesman is etymologically related to Man. Spokesman is etymologically related to Speak. 
you are likely to find Pen in/at/on Office. Pen is related to Bullet. 
Leading <--RelatedTo--> Captain <--RelatedTo--> Man <--EtymologicallyRelatedTo-- Spokesman --EtymologicallyRelatedTo--> Speak 
Office <--AtLocation-- Pen <--RelatedTo--> Bullet 