<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT ads (adlisting*)>
	<!ELEMENT adlisting (ref, name, make?, model?, description, price, year?, dimensions?, bedrooms?, sleeps?, vantype?, image1url?, image2url?, image3url?, image4url?, image5url?)*>
	<!ELEMENT ref (#PCDATA)>
	<!ELEMENT name (#PCDATA)>
    <!ELEMENT make (#PCDATA)>
    <!ELEMENT model (#PCDATA)>
	<!ELEMENT description (#PCDATA)>
  <!ELEMENT price (#PCDATA)>
  <!ELEMENT year (#PCDATA)>
  <!ELEMENT dimensions (#PCDATA)>
  <!ELEMENT bedrooms (#PCDATA)>
  <!ELEMENT sleeps (#PCDATA)>
  <!ELEMENT vantype (#PCDATA)>
	<!ELEMENT image1url (#PCDATA)>
	<!ELEMENT image2url (#PCDATA)>
	<!ELEMENT image3url (#PCDATA)>
    <!ELEMENT image4url (#PCDATA)>
    <!ELEMENT image5url (#PCDATA)>