@WORD

@WORD[["xxx",]n,string]:  Returns the nth word in a string.  The first 
word is numbered 0.  If n is negative, words are returned from the end of 
the string.  The first argument is a list of word separators you want to 
use; if you don't specify it, only spaces, tabs, and commas are considered 
to be word separators.  For example: 

        %@WORD[2,NOW IS THE TIME]     returns "THE"
        %@WORD[-0,NOW IS THE TIME]    returns "TIME"
        %@WORD[-2,NOW IS THE TIME]    returns "IS"
        %@WORD["=",1,2 + 2=4]         returns "4"