Cousin is a type of Person. Person is related to Gentleman. you are likely to find Gentleman in/at/on University. University is a type of Body. 
Trail is a synonym of Sign. Sign is related to Indicator. Indicator is part of Car. 
Cousin --IsA--> Person <--RelatedTo--> Gentleman --AtLocation--> University --IsA--> Body 
Trail <--Synonym--> Sign <--RelatedTo--> Indicator --PartOf--> Car 