DTD error

Can anyone help me with this error I cannot find?  
thank you much!

Your XML document   has an error: 
Expected an element name
line: 12
character: 22


<?xml version="1.0" encoding="utf-8"?>

<!-- Define Doc Type definition -->
<!DOCTYPE CONTACTS [
<!ELEMENT CONTACTS (PERSON)>
<!ELEMENT PERSON (FIRSTNAME,LASTNAME,PHONE+)>
<!ELEMENT FIRSTNAME (#PCDATA)>
<!ELEMENT LASTNAME  (#PCDATA)>
<!ELEMENT PHONE     (#PCDATA)>
<!ATTLIST PHONE
  TYPE CDATA #REQUIRED>
<!ELEMENT WORKADDR  (#CDATA)>   <!-- LINE 12 IS HERE -->
<!ELEMENT EMAIL     (#PCDATA)>
<!ATTLIST EMAIL
  TYPE CDATA #REQUIRED>
<!ELEMENT TIMEZONE  (#PCDATA)>
<!ELEMENT OTHERINFO (#CDATA)>
]>

<!-- Begin XML user data -->

<CONTACTS>
    <PERSON>
        <FIRSTNAME>Jeff</FIRSTNAME>
        <LASTNAME>XXXX</LASTNAME>
        <PHONE TYPE="HOME"> 9,234 876-90XX</PHONE>
        <PHONE TYPE="WORK"> 9,234 767-78XX</PHONE>
        <PHONE TYPE="CELL"> 9,234 778-67XX</PHONE>
        <WORKADDR>Zsoft 23400 Park Place, XXXXX</WORKADDR>
        <EMAIL TYPE="WORK">jXXXX</EMAIL>
        <EMAIL TYPE="HOME">jXXXXXX</EMAIL>
        <TIMEZONE>EST</TIMEZONE>
        <OTHERINFO>Linux Admin, Perl Guru</OTHERINFO>
    </PERSON>
</CONTACTS>







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