Lemon is a type of Fruit. Fruit is related to Banana. 
you are likely to find Bus in/at/on School. Bus can be used for Transport. Transport is a synonym of Shift. Shift is a synonym of Stir. 
Lemon --IsA--> Fruit <--RelatedTo--> Banana 
School <--AtLocation-- Bus --UsedFor--> Transport <--Synonym--> Shift <--Synonym--> Stir 