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  1. or download this
    use strict;

...
# The lexical (second) one still wins.

print $bar; # works, prints $foo::bar even though we are in baz
  2. or download this
    use strict;

...
package baz;
# $bar has only one meaning, access $baz::bar
print $bar; #error
  3. or download this
    package foo;
print $bar;   # prints the global $foo::bar

package baz;
print $bar;   # prints the global $baz::bar