title: How can I manipulate/extract info from the following table in J
body: <pre><code>   ]data=:_3 ]\ 'Jack';23;178;'Rick';27;181;'Alice';41;178;'Mitch';31;184;'Paul';32;179
  ┌─────┬──┬───┐
  │Jack │23│178│
  ├─────┼──┼───┤
  │Rick │27│181│
  ├─────┼──┼───┤
  │Alice│41│178│
  ├─────┼──┼───┤
  │Mitch│31│184│
  ├─────┼──┼───┤
  │Paul │32│179│
  └─────┴──┴───┘
  </code></pre>
  <p>The first field is name, second is age and third is height in cm.</p>