Part is related to Tongue. Tongue is a type of Muscle. Muscle can be used for Eating. Eating is related to Meal. 
Production is a type of Display. Display is a type of Communication. 
Part <--RelatedTo--> Tongue --IsA--> Muscle --UsedFor--> Eating <--RelatedTo--> Meal 
Production --IsA--> Display --IsA--> Communication 