title: Google Spreadsheet, Select rows based on occurrence in another column
body: <p>I have a <em>sheet</em> with these rows:</p>
  
  <pre><code># Sheet1
  A       B
  -       -
  White   1 
  Gray    2 
  Pink    3 
  Red     4 
  Brown   5 
  </code></pre>
  
  <p>An this is another <em>sheet</em> that acts as a filter:</p>
  
  <pre><code># Sheet2
  A
  -
  Gray
  Pink
  </code></pre>
  
  <p>I would like to have a third <em>sheet</em> with the rows in <code>Sheet1</code> which column value <code>A</code> is not included in <code>Sheet2!A</code>:</p>
  
  <pre><code># Sheet3
  A       B
  -       -
  White   1
  Red     4
  Brown   5
  </code></pre>
  
  <p>I'm trying with <code>filter</code>, <code>query</code>, <code>arrayformula</code>, .. but I don't get with the proper combination.</p>