Point is related to Extend. Extend is the opposite of Shrink. Contract is a type of Shrink. Charter is a type of Contract. 
Culture is related to Bacteria. you are likely to find Bacteria in/at/on Forest. Forest can be used for Timber. 
Point <--RelatedTo--> Extend <--Antonym--> Shrink <--IsA-- Contract <--IsA-- Charter 
Culture <--RelatedTo--> Bacteria --AtLocation--> Forest --UsedFor--> Timber 