[ q{$lang | caps('lower')}, [ 'LOWER', 'ENGLISH' ] ],
        [ q{new_foo.bar('Foo') | caps('other') }, [ 'OTHER', 'BAR', 'FOO' ] ],

        [ q($hash{'name'}{'first'}), 'John' ],
        [ q($hash{'name'}{'third'}), undef ],
        [ q{$array[2]},              'third' ],
        [ q{$array[-3]},             'second' ],

        [ q{+3},      3 ],