<?xml version="1.0" encoding="UTF-8"?>
<sbml xmlns="http://www.sbml.org/sbml/level1" level="1" version="1">
  <model>
    <listOfCompartments>
      <compartment name="x"/>
    </listOfCompartments>
    <listOfSpecies>
      <specie name="y" compartment="x" initialAmount="1"/>
    </listOfSpecies>
    <listOfReactions>
      <reaction name="x">
        <listOfReactants>
          <specieReference specie="y"/>
        </listOfReactants>
        <listOfProducts>
          <specieReference specie="y"/>
        </listOfProducts>
      </reaction>
    </listOfReactions>
  </model>
</sbml>
