Crop is related to Item. Item is related to Ear. you are likely to find Hair in/at/on Ear. Hair is related to Brush. 
Stay is related to Collar. Collar is the opposite of Profession. 
Crop <--RelatedTo--> Item <--RelatedTo--> Ear <--AtLocation-- Hair <--RelatedTo--> Brush 
Stay <--RelatedTo--> Collar <--Antonym--> Profession 