xml to xml XSLT tarnsformation

 Input XML
    ============================================
    <SOURCE TransactionId="1" ProviderName="ABCDD"><RESPONSE><![CDATA[<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://ift.tt/18hkEkn" xmlns:xsi="http://ift.tt/ra1lAU" xmlns:xsd="http://ift.tt/tphNwY"><soap:Body><NetworkResponse xmlns="http://www.example.com/"><NetworkResult>&lt;Network offering_id="13" transaction_id="2" submission_id="3" timestamp="20140828  16010683 GMT" customer_id="NETTest"&gt;
        &lt;Network_List&gt;
            &lt;Network_Info att0="Y" att1="N" att2="N" att3="Y" att4="Y"&gt;
            &lt;SIM_DATA&gt;
                    &lt;SIM&gt;&lt;![CDATA[1100040101]]&gt;&lt;/SIM&gt;
    &lt;/SIM_DATA&gt;
    &lt;NetworkResponseInfo k_status="C"&gt;
                    &lt;KEY1&gt;269&lt;/KEY1&gt;
                    &lt;PARENTNODE&gt;
                        &lt;CHILDNODE1&gt;
                            &lt;KEY2&gt;XXXXXXX&lt;/KEY2&gt;
                            &lt;KEY3&gt;YYYYYYY&lt;/KEY3&gt;
                        &lt;/CHILDNODE1&gt;
                        &lt;CHILDNODE2&gt;
                            &lt;KEY4&gt;N&lt;/KEY4&gt;
                            &lt;KEY5&gt;I&lt;/KEY5&gt;
                        &lt;/CHILDNODE2&gt;
                        &lt;CHILDNODE3&gt;
                            &lt;KEY6&gt;1&lt;/KEY6&gt;
                            &lt;KEY7&gt;3&lt;/KEY7&gt;
                        &lt;/CHILDNODE3&gt;
                    &lt;/PARENTNODE&gt;
                        &lt;KEY8&gt;&lt;![CDATA[some image not visible]]&gt;&lt;/KEY8&gt;
                        &lt;KEY9&gt;N&lt;/KEY9&gt;
                        &lt;KEY10&gt;15&lt;/KEY10&gt;
                &lt;/NetworkResponseInfo&gt;
            &lt;/Network_Info&gt;
        &lt;/Network_List&gt;
        &lt;response_message_list transaction_status_code="000" transaction_status_text="Successful"/&gt;
    &lt;/Network&gt;</NetworkResult></NetworkResponse></soap:Body></soap:Envelope>]]></RESPONSE></SOURCE>

    OUTPUT XML:
                <ns3:NetworkResponse>
                            <Networks_OF_List>
                                <NetCharSeq>
                                    <Nrep>
                                        <type>Some Image</type>
                                        <data>  Data Coming from KEY8 CDATA section</data>
                                    </Nrep>
                                    <Nrep>
                                        <type>ANYTHING</type>
                                        <data>VALUE INSIDE SIM CDATA</data>
                                    </Nrep>
                                    <NetDetail>
                                        <MYKEY1>Value present inside KEY4</MYKEY1>
                                        <MYKEY2>Value present inside KEY5</MYKEY2>
                                    </NetDetail>
                                    <SystemID>Value of KEY2</SystemID>
                                    <SystemPath>Valuelue of KEY3</SystemPath>
                                </NetCharSeq>
                            </Networks_OF_List>
                        </ns3:NetworkResponse>

Q : how to find and iterate through all the nodes present under CDATA and those nodes are started by (<) and closed by (>) Q .How should I iterate over all the child nodes and get the values like in below child node I want to retrieve the value