<!ELEMENT SupplierOrder (OrderId, OrderDate, ShippingAddress, LineItems)>

<!ELEMENT OrderId (#PCDATA)>

<!ELEMENT OrderDate (#PCDATA)>

<!ELEMENT ShippingAddress (FirstName, LastName, Street, City, State, Country, ZipCode, Email, Phone)>

<!ELEMENT FirstName (#PCDATA)>

<!ELEMENT LastName (#PCDATA)>

<!ELEMENT Street (#PCDATA)>

<!ELEMENT City (#PCDATA)>

<!ELEMENT State (#PCDATA)>

<!ELEMENT Country (#PCDATA)>

<!ELEMENT ZipCode (#PCDATA)>

<!ELEMENT Email (#PCDATA)>

<!ELEMENT Phone (#PCDATA)>

<!ELEMENT LineItems (LineItem+)>

<!ELEMENT LineItem EMPTY>

<!ATTLIST LineItem
     categoryId CDATA #REQUIRED
     productId CDATA #REQUIRED
     itemId CDATA #REQUIRED
     lineNo CDATA #REQUIRED
     quantity CDATA #REQUIRED
     unitPrice CDATA #REQUIRED
>