Write queries in XSLT and in XPath on the DTD of Exercise 10.3 to list all skill types in Emp.

Emp = (ename, ChildrenSet setof (Children), SkillsSet setof (Skills))

Children = (name, Birthday)

Birthday = (day, month, year)

Skills = (type, ExamsSet setof (Exams))

Exams = (year, city)