title: Access JSONPath firstLevel sons
body: <p>So, I have this answer I want to extract, among other things, the subjects, to test against other answers.</p>
  <pre><code>{
    &quot;subject&quot;: {
      &quot;pe&quot;: {
        &quot;total&quot;: 23,
        &quot;passed&quot;: 2,
        &quot;failed&quot;: 1,
      },
      &quot;maths&quot;: {
        &quot;total&quot;: 23,
        &quot;passed&quot;: 19,
        &quot;failed&quot;: 4,
      },
      &quot;history&quot;: {
        &quot;total&quot;: 20,
        &quot;passed&quot;: 17,
        &quot;failed&quot;: 3
      }
    }
  }
  </code></pre>
  <p>How do I get only the subjects?? Like:</p>
  <pre><code>{
    &quot;pe&quot;,
    &quot;maths&quot;,
    &quot;history&quot;
  ]
  </code></pre>