<table class="table table-striped" id="table-visual-features">
                        <thead>
                            <tr>
                                <th>Visual Feature</th>
                                <th>Step</th>
                                <th>Output</th>
                                <th>Data Feature</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr><td>x</td> 
                                <td><select><option>first</option></select></td>
                                <td><select><option>output</option></select></td>
                                <td><input name="data-feature_x"  id="value0" class = "feature-execution"/></td>
                           </tr>

                            <tr><td>x</td> 
                                <td><select><option>second</option></select></td>
                                <td><select><option>output</option></select></td>
                                <td><input name="data-feature_x"  id="value1" class = "feature-execution"/></td>
                           </tr>



                            <tr><td>x</td> 
                                <td><select><option>third</option></select></td>
                                <td><select><option>output</option></select></td>
                                <td><input name="data-feature_x"  id="value2" class = "feature-execution"/></td>
                           </tr>



                        </tbody>
                    </table>