title: entity framework use linq to return join tables
body: <p>i have some tables:</p>
  
  <pre><code>table1:
  id1
  fk_tb2 // this is the fk to table2
  
  table2:
  id2
  fk_tb3 //this is the fk to table3
  
  table3:
  id3
  name3
  </code></pre>
  
  <p>Now i want to return a table like:
  id1
  fk_tb2
  name3</p>
  
  <p>anyone knows how to do that? Thanks</p>
  
  <p>Regards,</p>