<?xml version="1.0" encoding="UTF-8"?>
<sbml xmlns="http://www.sbml.org/sbml/level2/version4" level="2" version="4">
  <model id="New_Model" name="New Model">

    <notes>
      <body xmlns="http://www.w3.org/1999/xhtml"/>
    </notes>

    <listOfUnitDefinitions>
      <unitDefinition id="volume" name="volume">
        <listOfUnits>
          <unit kind="litre" exponent="1" scale="-3" multiplier="1"/>
        </listOfUnits>
      </unitDefinition>
      <unitDefinition id="substance" name="substance">
        <listOfUnits>
          <unit kind="item" exponent="1" scale="0" multiplier="1"/>
        </listOfUnits>
      </unitDefinition>
    </listOfUnitDefinitions>

    <listOfCompartments>
      <compartment id="compartment" name="compartment" spatialDimensions="3" size="1" constant="true"/>
    </listOfCompartments>

    <listOfSpecies>
      <species id="X1" name="X1" compartment="compartment" initialConcentration="-1"
          boundaryCondition="false" constant="false"/>
      <species id="X2" name="X2" compartment="compartment" initialConcentration="-1"
          boundaryCondition="false" constant="false"/>
    </listOfSpecies>

    <listOfParameters>
      <parameter id="a" name="a" value="0.2" constant="true"/>
      <parameter id="b" name="b" value="0.2" constant="true"/>
      <parameter id="c" name="c" value="3" constant="true"/>
    </listOfParameters>

    <listOfReactions>

      <reaction id="R1" name="R1" reversible="false">
        <listOfProducts>
          <speciesReference species="X1" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="X1"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
              <times/>
              <ci> c </ci>
              <ci> X1 </ci>
            </apply>
          </math>
          <listOfParameters>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

      <reaction id="R2" name="R2" reversible="false">
        <listOfReactants>
          <speciesReference species="X1" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
              <apply>
                <times/>
                <apply>
                  <divide/>
                  <cn> 1 </cn>
                  <cn> 3 </cn>
                </apply>
                <apply>
                  <power/>
                  <ci> X1 </ci>
                  <cn> 3 </cn>
                </apply>
                <ci> c </ci>
              </apply>
          </math>
          <listOfParameters>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

      <reaction id="R3" name="R3" reversible="false">
        <listOfProducts>
          <speciesReference species="X1" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="X2"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
              <apply>
                <times/>
                <ci> c </ci>
                <ci> X2 </ci>
              </apply>
          </math>
          <listOfParameters>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

      <reaction id="R4" name="R4" reversible="false">
        <listOfReactants>
          <speciesReference species="X2" stoichiometry="1"/>
        </listOfReactants>
        <listOfModifiers>
          <modifierSpeciesReference species="X1"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
              <apply>
                <times/>
                <apply>
                  <divide/>
                  <cn> 1 </cn>
                  <ci> c </ci>
                </apply>
                <ci> X1 </ci>
              </apply>
          </math>
          <listOfParameters>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

      <reaction id="R5" name="R5" reversible="false">
        <listOfProducts>
          <speciesReference species="X2" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
              <apply>
                <times/>
                <apply>
                  <divide/>
                  <cn> 1 </cn>
                  <ci> c </ci>
                </apply>
                <ci> a </ci>
              </apply>
          </math>
          <listOfParameters>
            <parameter id="a" name="a" value="0.2" constant="true"/>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

      <reaction id="R6" name="R6" reversible="false">
        <listOfReactants>
          <speciesReference species="X2" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">
              <apply>
                <times/>
                <apply>
                  <divide/>
                  <cn> 1 </cn>
                  <ci> c </ci>
                </apply>
                <ci> b </ci>
                <ci> X2 </ci>
              </apply>
          </math>
          <listOfParameters>
            <parameter id="b" name="b" value="0.2" constant="true"/>
            <parameter id="c" name="c" value="3" constant="true"/>
          </listOfParameters>
        </kineticLaw>
      </reaction>

    </listOfReactions>

  </model>
</sbml>