do
        read in$
        if in$ ="END" then wait
        w =wordCount( in$)
        select case w
            case 0
                o$ ="{}"
            case 1
                o$ ="{" +in$ +"}"
            case 2
                o$ ="{" +word$( in$, 1) +" and " +word$( in$, 2) +"}"
            case else
                o$ ="{"
                o$ =o$ +word$( in$, 1)
                for k =2 to w -1
                    o$ =o$ +", " +word$( in$, k)
                next k
                o$ =o$ +" and " +word$( in$, w) +"}"
        end select
        if w =1 then
            print "'"; in$; "'"; " held "; w; " word. "; tab( 30); o$
        else
            print "'"; in$; "'"; " held "; w; " words. "; tab( 30); o$
        end if
    loop until 0

    wait

    function wordCount( IN$)
        wordCount =1
        for i =1 to len( IN$)
            if mid$( IN$, i, 1) =" " then wordCount =wordCount +1
        next i
    end function

    end

    data ""                 'No input words.
    data "ABC"              'One input word.
    data "ABC DEF"          'Two words.
    data "ABC DEF G"        'Three words.
    data "ABC DEF G H"      'Four words.

    data "END"              'Sentinel for EOD.