Trailer is related to Housing. Housing is a synonym of Lid. Lid is related to Cover. Uncover is derived from Cover. 
Information is created by Discovery. Example is a type of Information. Example is related to Month. Month is related to Division. 
Trailer <--RelatedTo--> Housing <--Synonym--> Lid <--RelatedTo--> Cover <--DerivedFrom-- Uncover 
Discovery <--CreatedBy-- Information <--IsA-- Example <--RelatedTo--> Month <--RelatedTo--> Division 