Change my 3pm meeting reminder today to a 4pm meeting reminder tomorrow.
[IN:UPDATE_REMINDER_DATE_TIME Change [SL:PERSON_REMINDED my ] [SL:DATE_TIME 3 pm ] [SL:TODO meeting ] reminder [SL:DATE_TIME today ] to a [SL:DATE_TIME_NEW 4 pm ] meeting reminder [SL:DATE_TIME_NEW tomorrow ] . ]