Senate is related to Congress. Congress is a synonym of Assembly. Court is a type of Assembly. Court is related to Just. 
you are likely to find Cow in/at/on Pen. Pen is related to Writing. 
Senate <--RelatedTo--> Congress <--Synonym--> Assembly <--IsA-- Court <--RelatedTo--> Just 
Cow --AtLocation--> Pen <--RelatedTo--> Writing 