7.1 Create an XML schema for a catalog of cars, where each car has the child elements make, model, year, color, engine, number_of_doors, transmission, and accessories. The engine element has the transmission_type, and accessories. The engine element has the child elements number_of_cylinders and fuel_systems (carbureted or fuel injected). The accessories element has the attributes radio, air conditioning, power_windows, power_steering, and power_brakes, each of which is required and has the possible values of yes and no.
7.2 Create an XML document with at least three instances of the car element defined in the XML schema of Exercise 7.1, and produce a display of the raw document.
7.4 Create and XSLT style sheet for one car element of the XML document of Exercise 7.2, and use it to create a display of that document.