<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
    <head>
        <layout>
            <root-layout width="640" height="480" backgroundColor="white" />
            <region id="reg1"/>
            <region id="reg2" width="100px" height="100px" top="45px" left="45px" />
        </layout>
    </head>
    <body>
        <par dur="indefinite">
            <img id ="inst" src="../images/animateMotion_addsum_lin_b_accum.gif" region="reg1" />
            <img id="T1" src="../images/smile.jpg" region="reg2" />
            <animateMotion id="anim" begin="1s" dur="4s" calcMode="linear" targetElement="reg2" values="45,20;45,40;45,350" by="0,420" origin="parent" fill="hold" additive="sum" accumulate="none" repeatDur="8" />
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    </body>
</smil>