<erl>
out(_A) ->
    %% Simple comment 1
    %  Simple comment 2
    %% Comment with special characters or string: ', ", <, >, <erl>, </erl>
    %  Comment with special characters or string: ', ", <, >, <erl>, </erl>
    {html, "Hello World! % this is not a comment %"}.
</erl>
