public virtual void Countries(KeywordsCommandArgs args)
        {
            var people   = this.ReadPeople(args).ToList();
            var keywords = people.Select(p => (p, new[] { p.Country }));

            this.View(args.View, keywords);
        }
        public virtual void IndustryKeywords(KeywordsCommandArgs args)
        {
            var people = this.ReadPeople(args).ToList();
            var keywords = new Analytics <Person> {
                Sink = people
            }.Tokenize(p => p.Industry);

            this.View(args.View, keywords);
        }