Question 4) [7 marks] Downl oad 4dat a xml from Moodle. Write the DTD for the XML data. You should NOT change the contents in 4 dat a.xml. 1. There is at least one student [1] 2. Each student could have multiple hobbies or no hobby [1] 3. Each student has at least one parent [1] 4. Each parent must have astrape and firstorre [1] 5. Each student has a compulsory attribute, which is student ID [1] 6. Consistency of other parts of the DTD [2] Your ars wer [DTD contents]