Fist is related to Punch. Punch is a synonym of Poke. 
Mouth can be used for Eating. Mouth is part of Head. Head is related to Headquarters. Headquarters is related to Central. 
Fist <--RelatedTo--> Punch <--Synonym--> Poke 
Eating <--UsedFor-- Mouth --PartOf--> Head <--RelatedTo--> Headquarters <--RelatedTo--> Central 