& cat()
 
  Syntax: cat(<string>[,<stringN>])
 
  This function returns a string made up of the contents of <string1> 
  through <stringN>, with each string separated from its neighbors by 
  a space.
 
  Example:
 
  > say cat(this is, a test)
  You say "this is a test"
  > say cat(This is,another,test of the,CAT function)
  You say "This is another test of the CAT function"
 
  See Also: setunion(), setdiff(), setinter().