<table>
        <caption>Planets</caption>
        <thead>
            <tr>
                <th scope="col">Planet</th>
                <th scope="col">Diameter (km)</th>
                <th scope="col">Length of Day (hours)</th>
                <th scope="col">Mean Temp (C)</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>Mercury</td>
                <td>4879</td>
                <td>4222.6</td>
                <td>167</td>
            </tr>
            <tr>
                <td>Venus</td>
                <td>12,104</td>
                <td>2802.0</td>
                <td>464</td>
            </tr>
            <tr>
                <td>Mars</td>
                <td>6792</td>
                <td>24.7</td>
                <td>-65</td>
            </tr>
            <tr>
                <td>Saturn</td>
                <td>120,536</td>
                <td>10.7</td>
                <td>-140</td>
            </tr>
        </tbody>
    </table>
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