you are likely to find Mushroom in/at/on Tree. Tree is related to Living. Living is related to Grow. 
Person wants (to) Equality. Supervisor is a type of Person. Supervisor is a type of Colleague. 
Mushroom --AtLocation--> Tree <--RelatedTo--> Living <--RelatedTo--> Grow 
Equality <--Desires-- Person <--IsA-- Supervisor --IsA--> Colleague 