you are likely to find Nurse in/at/on Clinic. you are likely to find Nurse in/at/on Hospital. you are likely to find Disease in/at/on Hospital. Disease is the opposite of Healthy. 
Basketball can be used for Throw. Pepper entails/necessarily involves Throw. 
Clinic <--AtLocation-- Nurse --AtLocation--> Hospital <--AtLocation-- Disease <--Antonym--> Healthy 
Basketball --UsedFor--> Throw <--Entails-- Pepper 