ag-gipp/GoUldI

<math 
  xmlns='http://www.w3.org/1998/Math/MathML'>
  <semantics>
    <mrow>
      <mi>U</mi>
      <mo>&#8289;</mo>
      <mo>(</mo>
      <mn>1</mn>
      <mo>)</mo>
    </mrow>
    <annotation-xml encoding='MathML-Content'>
      <apply>
        <ci>U</ci>
        <cn type='integer'>1</cn>
      </apply>
    </annotation-xml>
  </semantics>
</math>