Bright is related to Paint. Paint is related to Express. Drop is a type of Express. Drop is related to Item. 
Writing is related to Reading. Reading is related to North. North is similar to West. 
Bright <--RelatedTo--> Paint <--RelatedTo--> Express <--IsA-- Drop <--RelatedTo--> Item 
Writing <--RelatedTo--> Reading <--RelatedTo--> North <--SimilarTo--> West 