Fear is related to Feeling. Feeling is related to Joy. Joy is the opposite of Sad. Sad is related to Frown. 
Chart is related to Drawing. Pen can be used for Drawing. 
Fear <--RelatedTo--> Feeling <--RelatedTo--> Joy <--Antonym--> Sad <--RelatedTo--> Frown 
Chart <--RelatedTo--> Drawing <--UsedFor-- Pen 