// Translators: 1 is category, 2 is tag, 3 is the date and 4 is the author's name.
    if ( $tag_list ) {
        $utility_text = __( 'This entry was posted in %1$s and tagged %2$s<span class="date"> on %3$s</span><span class="by-author"> by %4$s</span>.', 'twentytwelve' );
    } elseif ( $categories_list ) {
        $utility_text = __( 'This entry was posted in %1$s<span class="date"> on %3$s</span><span class="by-author"> by %4$s</span>.', 'twentytwelve' );
    } else {
        $utility_text = __( 'This entry was posted<span class="date"> on %3$s</span><span class="by-author"> by %4$s</span>.', 'twentytwelve' );
    }