& extract()
 
  Syntax: extract(<string>, <first>, <length>[, <delim>])
 
  Extract returns a string of length words, starting with the first 
  word. Unlike letters, the first word in a string is number 1, 
  instead of 0.
 
  Example:
 
  > say extract(This is a really neat example, 4, 2)
  You say "really neat"
  > say extract(Another@funky@test@for@extract, 3, 3)
  You say "test@for@extract"
 
	See Also: index(), insert(), ldelete(), replace(), first(), last(), 
	rest()