Forum is related to Thread. Thread is a type of Cord. 
Blow is a type of Lay. Blow is a type of Disclose. Disclose is a synonym of Expose. Moon is a type of Expose. 
Forum <--RelatedTo--> Thread --IsA--> Cord 
Lay <--IsA-- Blow --IsA--> Disclose <--Synonym--> Expose <--IsA-- Moon 