xmlns="urn:ietf:params:xml:ns:yang:yin:1"

        xmlns:g3="urn:g3"

        xmlns:g2="urn:g2">

  <namespace uri="urn:g3"/>

  <prefix value="g3"/>

  <import module="g2">

    <prefix value="g2"/>

  </import>

  <grouping name="group1">

    <container name="cont2">

      <leaf name="l2">

        <type name="string"/>

      </leaf>

    </container>

    <leaf name="l3">

      <type name="leafref">

        <path value="/g2:top/g3:cont1/g3:l1"/>

      </type>

    </leaf>

    <leaf name="l4">

      <must condition="/g2:top/g3:cont1/g3:l1 = 'bb'"/>

      <type name="leafref">

        <path value="../cont2/l2"/>

      </type>

    </leaf>

  </grouping>

  <augment target-node="/g2:top">

    <container name="cont1">

      <must condition="../cont1/l1 != 'aa'"/>

      <leaf name="l1">

        <type name="string"/>

      </leaf>

    </container>

  </augment>

</module>