<<< mml
<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mstyle mathsize="200%" displaystyle="false">
    <mover>
      <mi>x</mi> 
      <mo> &#x20DB;</mo> 
    </mover> 
    <mo> &#x2260;</mo> 
    <mstyle accent="false">
      <mover>
        <mi>x</mi> 
        <mo> &#x20DB;</mo> 
      </mover> 
    </mstyle> 
    <mo> &#x003D;</mo> 
    <mover accent="false">
      <mi>x</mi> 
      <mo> &#x20DB;</mo> 
    </mover> 
    <mo> &#x003D;</mo> 
    <mover>
      <mi>x</mi> 
      <mo accent="false"> &#x20DB;</mo> 
    </mover> 
  </mstyle> </math>
>>> native
[ EOver False (EIdentifier "x") (ESymbol Accent "\8411")
, ESymbol Rel "\8800"
, EOver False (EIdentifier "x") (ESymbol Accent "\8411")
, ESymbol Rel "="
, EOver False (EIdentifier "x") (ESymbol Accent "\8411")
, ESymbol Rel "="
, EOver False (EIdentifier "x") (ESymbol Accent "\8411")
]