Untitled

<!DOCTYPE html>
<html>
<head>
<style>
table, th, td {
    border: 1px solid black;
}
</style>
</head>
<body>

<h2>Add a border to a table:</h2>

    <table>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>
      </tr>
      <tr>
        <td>Peter</td>
        <td>Griffin</td>
        <td><button type="button">Click!</button></td>
      </tr>
      <tr>
        <td>Lois</td>
        <td>Griffin</td>
        <td><button type="button">Click!</button></td>
      </tr>
    </table>

    </body>
    </html>

/html/body/table/tr[td[1]/text()='Lois' and td[2]/text()='Griffin']/td/button

/html/body/table/tr[td[1]/text()='Lois' and td[2]/text()='Griffin']/td

.//tr/td[text()[.="Lois"]]/following-sibling::td[position()=2]/button