Knife is related to Eating. Corn can be used for Eating. Corn is related to Meal. 
Establish is a synonym of Determine. Determine is a synonym of Judge. Judge is related to Compare. Distinguish entails/necessarily involves Compare. 
Knife <--RelatedTo--> Eating <--UsedFor-- Corn <--RelatedTo--> Meal 
Establish <--Synonym--> Determine <--Synonym--> Judge <--RelatedTo--> Compare <--Entails-- Distinguish 