Project 2: Project Name: Experiment on Schema Project Description: Given a XML document in part III Please Write down the XML schema according to the document and the following requirements 1) The element publisher is required. 2) The count of element author is no more than 5 . 3) Add another three features for the element book with attribute or sub-element, which is optional. 4) Add another three features for the element author with attribute or sub-element, which is optional. Project Name: Experiment on XQuery Project Description: Given a XML document in part III. Please Write down the XQuery language to complete the following requirements 1) Write XQuery language to find the title and the first authors of all books 2) Write XQuery language to find the title and the first author of the books which are published in 2020. 3) Write XQuery language to find the title and the first author of the books which are published by Wuhan University. 4) Write XQuery language to find the title and the first author of the books which are written by Zhang San. Project Name: Experiment on XPath Project Description: Given a XML document in part III Please Write down the XPath expression to complete the following requirements 1) Write XPath expression to find the information of the first author of all books 2) Write XPath expression to find the information of the first author of the book published in 2020 3) Write XPath expression to find the information of the book published by Wuhan University. 4) Write XPath expression to find the information of the book Written by Zhang San. Project 1: Project Name: Experiment on DTD Project Description: Given a XML document in part III Please Write down the DTD according to the document and the following requirements 1) The element publisher is required. 2) The count of element author is no more than 5 . 3) Add another three features for the element book with attribute or sub-element, which is optional. 4) Add another three features for the element author with attribute or sub-element, which is optional