ok = true

	featureSet := set(features)
	exceptionSet := set(exception)

	slices.Sort(features)
	slices.Sort(required)

	take := func(sl *[]string) string {
		s := (*sl)[0]
		*sl = (*sl)[1:]
		return s
	}

	for len(features) > 0 || len(required) > 0 {
		switch {
		case len(features) == 0 || (len(required) > 0 && required[0] < features[0]):

				"text/vnd.net2phone.commcenter.command",
				"text/vnd.si.uricatalogue",
				"text/vnd.sun.j2me.app-descriptor",
				"text/vnd.trolltech.linguist",
				"text/vnd.wap.si",
				"text/vnd.wap.sl",
				"text/vnd.wap.wml",
				"text/vnd.wap.wmlscript",
				"text/x-awk",
				"text/x-basic",
				"text/x-c++hdr",
				"text/x-c++src",
				"text/x-cgi",
				"text/x-chdr",