Elements()

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ELEMENTS()

 FUNCTION: elements(<list of words>,<list of numbers>[,<idelim>[,<odelim>]])
 This function returns the words in <list of words> that are in the
 positions specified by <list of numbers>.  <list of numbers> is always
 delimited by spaces.  <idelim> is the delimiter for <list of words>,
 and the output is delimited by <odelim>
 Examples:
   > say elements(Foo Ack Beep Moo Zot,2 4)
   You say, "Ack Moo"
   > say elements(Foof|Ack|Beep|Moo,3 1,|)
   You say, "Beep|Foof"