SAIL Recipes give you an opportunity to explore different interface design patterns. To learn how to directly use SAIL recipes within your interfaces, see Adapt a SAIL Recipe to Work with My Applications.
Allow users to choose from a long text array using an autocompleting picker, but also allow them to see the entire choice set using a dropdown.
Dropdowns with many choices can be a little unwieldy, but when there is doubt about even the first letters of an option they can be very useful.
The main expression uses a supporting rule, so let's create that first.