Nail is related to Related. Related is related to Memory. Memory is related to Thought. Thought is related to Consider. 
Comfortable is similar to Wide. Wide is related to Array. 
Nail <--RelatedTo--> Related <--RelatedTo--> Memory <--RelatedTo--> Thought <--RelatedTo--> Consider 
Comfortable <--SimilarTo--> Wide <--RelatedTo--> Array 