i need help with this xml problem!

1. The following XML document describes some entries of a Database Inventory production iDevelopment.infoDomain> Jeffrey Hunter considered the most stable for includes running the database nightly backups. All new accounts before being created The following database should be up-to-date data. The backup strategy in Archive Log Mode and performing need to be approved by the DBA Group development Jeffrey Hunter The following database should contain all hosted applications. Production data will be exported on a weekly basis to ensure all development environments have stable and current data 1. Check if the XML document is well-formed. If it is not, change it so that it becomes wellformed, making as little changes as possible 2. Write a DTD for this XML document such that the corrected version of the example is a valid XML document and the following "requirements" hold: a. There can be only one OracleSID, DatabaseDomain and Comments for a DatabaseName element b. There may be more than one Administrator for a DatabaseName c The atribute Emai lAlias is required