Pencil entails/necessarily involves Trace. Trace is related to Drawing. 
Distinguish is related to See. See is related to Glass. Glass can be used for Hold. Hold is a type of Prevent. 
Pencil --Entails--> Trace <--RelatedTo--> Drawing 
Distinguish <--RelatedTo--> See <--RelatedTo--> Glass --UsedFor--> Hold --IsA--> Prevent 