ag-gipp/GoUldI

<math 
  xmlns="http://www.w3.org/1998/Math/MathML" display="block" alttext="upper S Subscript upper E upper H Baseline equals StartFraction 1 Over upper G 3 EndFraction integral d cubed x StartRoot minus g Superscript left-parenthesis 3 right-parenthesis Baseline EndRoot left-parenthesis upper R Superscript left-parenthesis 3 right-parenthesis Baseline plus script upper L Subscript matter Baseline right-parenthesis">
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          <mo data-semantic-type="largeop" data-semantic-role="integral" data-semantic-id="12" data-semantic-parent="45" data-semantic-operator="integral">∫
            <!-- ∫ -->
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            <mspace width="thinmathspace"/>
            <mo data-semantic-type="operator" data-semantic-role="multiplication" data-semantic-id="41" data-semantic-parent="43" data-semantic-added="true" data-semantic-operator="infixop,⁢">⁢</mo>
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            <mo data-semantic-type="operator" data-semantic-role="multiplication" data-semantic-id="42" data-semantic-parent="43" data-semantic-added="true" data-semantic-operator="infixop,⁢">⁢</mo>
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                    <mtext data-semantic-type="text" data-semantic-role="unknown" data-semantic-font="normal" data-semantic-id="35" data-semantic-parent="36">matter</mtext>
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    <annotation encoding="application/x-tex">S_{EH}={\frac {1}{G_{3}}}\int d^{3}x\,{\sqrt {-g^{(3)}}}\,(R^{(3)}+{\cal {L}}_{\text{matter}})</annotation>
  </semantics>
</math>