Design is related to Drawing. Drawing is a type of Representation. Representation is related to Writing. Poem can be used for Writing. 
Assignment is a synonym of Offer. Offer is related to Communication. 
Design <--RelatedTo--> Drawing --IsA--> Representation <--RelatedTo--> Writing <--UsedFor-- Poem 
Assignment <--Synonym--> Offer <--RelatedTo--> Communication 