Level is related to Threshold. Threshold is a type of Beginning. Beginning is a synonym of Root. Root is related to Onion. 
Horse is related to Hay. Hay is a type of Convert. Convert is a type of Persuade. Drag is a type of Persuade. 
Level <--RelatedTo--> Threshold --IsA--> Beginning <--Synonym--> Root <--RelatedTo--> Onion 
Horse <--RelatedTo--> Hay --IsA--> Convert --IsA--> Persuade <--IsA-- Drag 