Cancer is a type of Illness. Cancer can cause/lead to Death. Death is related to Will. 
Draw is etymologically related to Drag. Draw is a type of Move. Slip is a type of Move. Slip is the opposite of Balance. 
Illness <--IsA-- Cancer --Causes--> Death <--RelatedTo--> Will 
Drag <--EtymologicallyRelatedTo-- Draw --IsA--> Move <--IsA-- Slip <--Antonym--> Balance 