<<< native
[ EIdentifier "a"
, ESymbol Rel ">"
, EIdentifier "b"
, ESymbol Rel "or"
, EIdentifier "a"
, ESymbol Rel ">"
, EIdentifier "c"
]
>>> omml
<?xml version='1.0' ?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:r>
      <m:t>a</m:t>
    </m:r>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>&gt;</m:t>
    </m:r>
    <m:r>
      <m:t>b</m:t>
    </m:r>
    <m:box>
      <m:boxPr>
        <m:opEmu m:val="1" />
      </m:boxPr>
      <m:e>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>or</m:t>
        </m:r>
      </m:e>
    </m:box>
    <m:r>
      <m:t>a</m:t>
    </m:r>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>&gt;</m:t>
    </m:r>
    <m:r>
      <m:t>c</m:t>
    </m:r>
  </m:oMath>
</m:oMathPara>