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push @LoL, [$key, $value];

#!/usr/bin/perl -wl
use strict;
...
75     50, meant bodi act forc keep move straight line same speed
65     45, idea first state explicitli newton principia mathematica pu
+blish 1687 known newton first law
75     50, happen bodi forc act given newton second law

%hash = (
          '70' => 'show real effect forc chang speed bodi set move pre
+vious thought',
...
         '75',
         'happen bodi forc act given newton second law'
       );