Fiber is related to Character. Character is related to Writing. Writing is related to Pencil. Pencil is related to Mark. 
Boy is a type of Band. Boy is related to Short. 
Fiber <--RelatedTo--> Character <--RelatedTo--> Writing <--RelatedTo--> Pencil <--RelatedTo--> Mark 
Band <--IsA-- Boy <--RelatedTo--> Short 