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  1. or download this
    use strict;
my @lines = <DATA>;
...
__DATA__
 Delimit each  word with   one  or more spaces
   This  is  the    second  line
  2. or download this
    $_: ' Delimit each  word with   one  or more spaces'
'Delimit' 'each' 'word' 'with' 'one' 'or' 'more' 'spaces' 

$_: '   This  is  the    second  line'
'This' 'is' 'the' 'second' 'line'
  3. or download this
       my @words = split;