func wordyList(words []string) string {
	if len(words) == 0 {
		return ""
	}
	if len(words) == 1 {
		return words[0]
	}
	return strings.Join(words[0:len(words)-1], ", ") + " or " + words[len(words)-1]
}
// wordyList formats the given slice in the form "x, y or z".
wordyList formats the given slice in the form "x, y or z".
// wordyList formats the given slice in the form " x y or z " .
func wordyList(words []string) string {
	if len(words) == 0 {
		return ""
	}
	if len(words) == 1 {
		return words[0]
	}
	return strings.Join(words[0:len(words)-1], ", ") + " or " + words[len(words)-1]
}
func wordyList ( words [ ] string ) string { if len ( words ) == 0 { return " " } if len ( words ) == 1 { return words [ 0 ] } return strings . Join ( words [ 0 : len ( words ) - 1 ] , " " ) + " " + words [ len ( words ) - 1 ] }
wordyList formats the given slice in the form "x, y or z".
wordyList formats the given slice in the form " x y or z " .