function add_arta_structured_data_to_head() {
    echo '<script type="application/ld+json">';
    echo json_encode([
        "@context" => "https://schema.org",
        "@type" => "Organization",
        "name" => "Arta Group",
        "url" => "https://artagroup.org",
        "logo" => "https://artagroup.org/wp-content/uploads/2024/logo.png",
        "description" => "Design & fit-out for residential, commercial & offices",
        "email" => "info@artagroup.ae",
        "telephone" => "+971 4 585 1983",
        "address" => [
            "@type" => "PostalAddress",
            "streetAddress" => "Office No. 2101, XL Tower, Business Bay",
            "addressLocality" => "Dubai",
            "addressCountry" => "AE"
        ],
        "contactPoint" => [
            "@type" => "ContactPoint",
            "telephone" => "+971 4 585 1983",
            "contactType" => "Customer Service",
            "areaServed" => "AE",
            "availableLanguage" => ["English", "Arabic"]
        ]
    ], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
    echo '</script>';
}
add_action('wp_head', 'add_arta_structured_data_to_head');
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://artagroup.org/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://artagroup.org/wp-sitemap-posts-post-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-posts-blocks-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-posts-featured_item-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-taxonomies-post_tag-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-taxonomies-post_format-1.xml</loc></sitemap><sitemap><loc>https://artagroup.org/wp-sitemap-taxonomies-featured_item_category-1.xml</loc></sitemap></sitemapindex>