Acknowledge is derived from Knowledge. Knowledge is related to Test. Test is related to Academic. Academic is related to Philosophy. 
Market is a synonym of Grocery. you are likely to find Grape in/at/on Grocery. 
Acknowledge --DerivedFrom--> Knowledge <--RelatedTo--> Test <--RelatedTo--> Academic <--RelatedTo--> Philosophy 
Market <--Synonym--> Grocery <--AtLocation-- Grape 