Fat is a synonym of Productive. Productive is derived from Produce. you are likely to find Produce in/at/on Supermarket. 
Content is a type of Collection. Class is a type of Collection. Class is related to Teacher. Missionary is a type of Teacher. 
Fat <--Synonym--> Productive --DerivedFrom--> Produce --AtLocation--> Supermarket 
Content --IsA--> Collection <--IsA-- Class <--RelatedTo--> Teacher <--IsA-- Missionary 