public Prefix Hello(Noun.hello hello, [Optional] comma comma)
 {
     // In this case we want to use the same greeting back, i.e. Hello->Hello, Hi->Hi, ...
     return(new Prefix {
         Original = hello.Text + ",", OptionalResponsePrefix = hello.Text + ","
     });
 }
        public NLPActionResult Hello(Noun.hello hello)
        {
            string now = DateTime.Now.ToShortTimeString();

            st.Say("Hello to you too, it's now " + now);
            st.Remember(new SampleMemory(now));                // an example of how you can remember things that you spoke about
            return(NLPActionResult.None);
        }