Pat is related to Road. Road is related to Passage. Passage is related to Narrow. Narrow is a different concept from Broad. 
Trust is related to Fall. Fall is related to Apple. Apple is related to Basic. Basic is related to Letter. 
Pat <--RelatedTo--> Road <--RelatedTo--> Passage <--RelatedTo--> Narrow <--DistinctFrom--> Broad 
Trust <--RelatedTo--> Fall <--RelatedTo--> Apple <--RelatedTo--> Basic <--RelatedTo--> Letter 