Chair is related to Furniture. Furniture is related to Sign. Sign is related to Communication. Advertising is a type of Communication. 
Hour is related to Measurement. Measurement is related to Height. 
Chair <--RelatedTo--> Furniture <--RelatedTo--> Sign <--RelatedTo--> Communication <--IsA-- Advertising 
Hour <--RelatedTo--> Measurement <--RelatedTo--> Height 