html_bs_xpath

<html lang="utf-8">

<body>
<p>Product Page</p>
<table>
    <tbody>
    <tr>
        <th>Key1:</th>
        <td>value1</td>
    </tr>
    <tr>
        <th>Key2:</th>
        <td>value2</td>
    </tr>
    <tr>
        <th>Key3:</th>
        <td>value i don't need</td>
    </tr>
    <tr>
        <th>Key4:</th>
        <td>value <sup>has</sup> many <sub>sub tags</sub></td>
    </tr>
    <tr>
        <th>Key5:</th>
        <td>value that i need<span>but i don't need this</span></td>
    </tr>
    </tbody>
</table>
</body>
</html>