mapnik/tests/data/broken_maps/bool_value_broken.xml

<!DOCTYPE Map>
<Map background-color="#b5d0d0" srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over" minimum-version="0.7.2">
    <Style name="test 1">
        <Rule>
            <PointSymbolizer file="data/images/dummy.png" allow-overlap="maybe"/>
        </Rule>
    </Style>
</Map>