title: Not to show names which one of the entries has unwanted value
body: <p>For example, there is such table "Eaten_food":</p>
  
  <pre><code>Name       Food
  --------------------
  Lisa       Grapes
  Victoria   Broccoli
  Oliver     Carrot
  Lisa       Apple
  Kayla      Pineapple
  Oliver     Banana
  Victoria   Kiwi
  Kayla      Grapes
  </code></pre>
  
  <p>I want to do a query to show only names that didn't eat grapes.
  So, for example, Kayla and Lisa ate grapes, so they shouldn't be on the result list.<br></p>
  
  <pre><code>SELECT Name FROM Eaten_food WHERE NOT Food = "Grapes" GROUP BY Name
  </code></pre>
  
  <p>This query doesn't work. What query should be correct in this case?</p>