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<?php
    $topTwelveCoral = array(
      'post_type'      => 'NAME',
      'posts_per_page' => 3
    );
    $my_query = new WP_Query( $topTwelveCoral );
    while ($my_query->have_posts()) : $my_query->the_post();
    $do_not_duplicate = $post->ID;
?>

    <h2><?php the_title(); ?></h2>

<?php endwhile; ?>