Ridge is a type of Throw. Slam is a type of Throw. Slam is a type of Impact. 
Instructional is related to Sign. Sign is related to Information. Information is related to Question. 
Ridge --IsA--> Throw <--IsA-- Slam --IsA--> Impact 
Instructional <--RelatedTo--> Sign <--RelatedTo--> Information <--RelatedTo--> Question 