Thinking can be used for Entertainment. Thinking can cause/lead to Fatigue. Fatigue is related to Chronic. Chronic is a synonym of Continuing. 
Deny is the opposite of Claim. Claim is related to Possession. Possession is related to Have. 
Entertainment <--UsedFor-- Thinking --Causes--> Fatigue <--RelatedTo--> Chronic <--Synonym--> Continuing 
Deny <--Antonym--> Claim <--RelatedTo--> Possession <--RelatedTo--> Have 