<!ELEMENT letter (contact+, salutation, paragraph+, closing, signature)>

<!ELEMENT salutation (#PCDATA)>
<!ELEMENT paragraph (#PCDATA)>
<!ELEMENT closing (#PCDATA)>
<!ELEMENT signature (#PCDATA)>
<!ATTLIST contact type CDATA #REQUIRED>


<!ELEMENT contact (name, address1, address2?, city, state, zip, phone)>

<!ELEMENT name (#PCDATA)>
<!ELEMENT address1 (#PCDATA)>
<!ELEMENT address2 (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>
<!ELEMENT phone (#PCDATA)>