Query selector /3a

Question

I’m making js of htmls complexes that were not structured by me. To facilitate use of Firebux or Chrome Developer to copy the ready selector. They return me this selector:

#dadosCadastrais\3a dadosCadastraisPessoaTable\3a 0\3a j1_data > tr > td:nth-child(1)

But the browser doesn’t understand this \3a

I want to capture the tag: <td role="gridcell">Paulo Henrique</td>

The html structure is this:

<form target="_self" enctype="application/x-www-form-urlencoded" action="http://pcnisapr02.prevnet/cnis/faces/pages/requerimento/painelcidadao/painelCidadao.xhtml" method="post" name="dadosCadastrais" id="dadosCadastrais">

    <span id="dadosCadastrais:dadosCadastraisContainer"><div class="ui-datatable ui-widget center-block dtp-painel-datatable" id="dadosCadastrais:dadosCadastraisPessoaTable">
            <div class="ui-datatable-header ui-widget-header ui-corner-top">
                <div class="btn-toolbar">
                    <div class="btn-group">
                        <span class="ico-user"></span> Dados Cadastrais
                    </div>

                </div>
            </div>
            <div class="ui-datatable-tablewrapper"><table role="grid">
                    <tbody class="ui-datatable-data ui-widget-content" id="dadosCadastrais:dadosCadastraisPessoaTable_data">
                        <tr role="row" class="ui-widget-content ui-datatable-even" data-ri="0">
                            <td role="gridcell">
                                <div class="ui-datatable ui-widget" id="dadosCadastrais:dadosCadastraisPessoaTable:0:j1">
                                    <div class="ui-datatable-tablewrapper">
                                        <table role="grid">
                                            <tbody class="ui-datatable-data ui-widget-content" id="dadosCadastrais:dadosCadastraisPessoaTable:0:j1_data">
                                                <tr role="row" class="ui-widget-content ui-datatable-even" data-ri="0">
                                                    <td role="gridcell">Paulo Henrique</td>
                                                    <td role="gridcell">Casa</td>
                                                    <td role="gridcell"></td>
                                                    <td role="gridcell">09/09/1993</td>
                                                    <td role="gridcell">27/12/2011</td>
                                                    <td role="gridcell">Nit normal</td>
                                                </tr>
                                            </tbody>
                                        </table>
                                    </div>
                                </div>
                            </td></tr></tbody></table></div></div></span>
</form>