Log is a type of Record. Log is similar to Diary. you are likely to find Diary in/at/on Desk. you are likely to find Dog in/at/on Desk. 
Hurricane is related to Fierce. Fierce is related to Shark. Shark is related to Sea. 
Record <--IsA-- Log <--SimilarTo--> Diary --AtLocation--> Desk <--AtLocation-- Dog 
Hurricane <--RelatedTo--> Fierce <--RelatedTo--> Shark <--RelatedTo--> Sea 