Medicine is related to Bathroom. you are likely to find Carpet in/at/on Bathroom. 
Stress is related to Pressure. Pressure is a type of Sensation. Sensation is related to Touch. Cling is a type of Touch. 
Medicine <--RelatedTo--> Bathroom <--AtLocation-- Carpet 
Stress <--RelatedTo--> Pressure --IsA--> Sensation <--RelatedTo--> Touch <--IsA-- Cling 