那里有错？

<?xml version="1.0" encoding="gb2312"?>
<!ELEMENT personnel(employee)>
<!ELEMENT employee(name,age,education,address)>
<!ELEMENT name(#PCDATA) >
<!ELEMENT age(#PCDATA) >
<!ELEMENT education(#PCDATA) >
<!ELEMENT address(#PCDATA) >

<personnel>
<employee>
                <name>文一</name>
                <age>22</age>
                <education>本科</education>
                <address>北京文二路23号</address>
</employee>
<employee>
                <name>文二</name>
                <age>23</age>
                <education>本科</education>
                <address>北京文一路23号</address>
</employee>
</personnel>

<?xml version="1.0" encoding="gb2312"?>
<!DOCTYPE personnel [
<!ELEMENT personnel (employee+)>
<!ELEMENT employee (name,age,education,address)>
<!ELEMENT name (#PCDATA) >
<!ELEMENT age (#PCDATA) >
<!ELEMENT education (#PCDATA) >
<!ELEMENT address (#PCDATA) >
]>
<personnel>
<employee>
        <name>文一</name>
        <age>22</age>
        <education>本科</education>
        <address>北京文二路23号</address>
</employee>
<employee>
        <name>文二</name>
        <age>23</age>
        <education>本科</education>
        <address>北京文一路23号</address>
</employee>
</personnel>