[xsl] identify lowest value within a range of elements

Hi

Given the following input (number of column elements is arbitrary);

<wrapper>
        <column>
                <price>111</price>
                <price>222</price>
                <price>333</price>
                <price>444</price>
                <price>555</price>
                <price>666</price>
                <price>777</price>
                <price>888</price>
                <price>999</price>
        </column>
        <column>
                <price>999</price>
                <price>888</price>
                <price>777</price>
                <price>666</price>
                <price>555</price>
                <price>444</price>
                <price>333</price>
                <price>222</price>
                <price>111</price>
        </column>
        <column>
                <price>555</price>
                <price>666</price>
                <price>777</price>
                <price>111</price>
                <price>222</price>
                <price>333</price>
                <price>444</price>
                <price>555</price>
                <price>666</price>
        </column>
</wrapper> 

I need to identify the price element(s) with the lowest value within
certain position ranges.

So,     range1 --> Position() < 5
        range2 --> Position() >=5

---------------
REQUIRED OUTPUT
---------------
<wrapper>
        <column>
                <price>111</price>
                <price>222</price>
                <price>333</price>
                <price>444</price>
                <price>555</price>
                <price>666</price>
                <price>777</price>
                <price>888</price>
                <price>999</price>
        </column>
        <column>
                <price>999</price>
                <price>888</price>
                <price>777</price>
                <price>666</price>
                <price>555</price>
                <price>444</price>
                <price>333</price>
                <price>222</price>
                <price lowest="range2">111</price>
        </column>
        <column>
                <price>555</price>
                <price>666</price>
                <price>777</price>
                <price lowest="range1">111</price>
                <price>222</price>
                <price>333</price>
                <price>444</price>
                <price>555</price>
                <price>666</price>
        </column>
</wrapper> 
 
I am able to use XSLT 2. Could someone please point me in the right
direction?

Thanks.

--
Kevin

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