Surgery is related to Hospital. you are likely to find Blanket in/at/on Hospital. Blanket is related to Bedroom. 
Anxious is a synonym of Dying. Dying is a different concept from Live. Organism wants (to) Live. 
Surgery <--RelatedTo--> Hospital <--AtLocation-- Blanket <--RelatedTo--> Bedroom 
Anxious <--Synonym--> Dying <--DistinctFrom--> Live <--Desires-- Organism 