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<table class="lu-table" border="0" align="center" summary="The table shows the longest rivers of the United Kingdom">
<caption>Longest rivers of the United Kingdom</caption>
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<tr>
<th class="placea"  scope="col">River</th>
<th class="placea" scope="col">Length (kilometer)</th>
</tr>
<tr>
<td class="placea">River Severn</td>
<td class="placea">354</td>
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<tr>
<td class="placea">River Thames</td>
<td class="placea">346</td>
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<tr>
<td class="placea">River Trent</td>
<td class="placea">297</td>
</tr>
<tr>
<td class="placea">River Great Ouse</td>
<td class="placea">230</td>
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