Science is related to Term. Term is a synonym of Couch. 
Boring is related to Work. Homework is a type of Work. Homework is related to Due. Duty is derived from Due. 
Science <--RelatedTo--> Term <--Synonym--> Couch 
Boring <--RelatedTo--> Work <--IsA-- Homework <--RelatedTo--> Due <--DerivedFrom-- Duty 