ub dir.
		foreach ( $this->graphSubDirectories as $dirName ) {
			$namespace = "\AIOSEO\Plugin\Common\Schema\Graphs\\{$dirName}\\{$graphName}";
			if ( class_exists( $namespace ) ) {
				return $namespace;
			}
		}

		return '';
	}

	/**
	 * Determines the smart graphs that need to be output by default, as well as the current context for the breadcrumbs.
	 *
	 * @since 4.2.5
	 *
	 * @return void
	 */
	protected function determineSmartGraphsAndContext() {
		$this->graphs = array_merge( $this->graphs, $this->getDefaultGraphs() );

		$contextInstance = new Context();
		$this->context   = $contextInstance->defaults();

		if ( aioseo()->helpers->isDynamicHomePage() ) {
			$this->graphs[] = 'CollectionPage';
			$this->context  = $contextInstance->home();

			return;
		}

		if ( is_home() || aioseo()->helpers->isWooCommerceShopPage() ) {
			$this->graphs[] = 'CollectionPage';
			$this->context  = $contextInstance->post();

			return;
		}

		if ( is_singular() ) {
			$this->determineContextSingular( $contextInstance );
		}

		if ( is_category() || is_tag() || is_tax() ) {
			$this->graphs[] = 'CollectionPage';
			$this->context  = $contextInstance->term();

			return;
		}

		if ( is_author() ) {
			$this->graphs[] = 'ProfilePage';
			$this->graphs[] = 'PersonAuthor';
			$this->context  = $contextInstance->author();
		}

		if ( is_post_type_archive() ) {
			$this->graphs[] = 'CollectionPage';
			$this->context  = $contextInstance->postArchive();

			return;
		}

		if ( is_date() ) {
			$this->graphs[] = 'CollectionPage';
			$this->context  = $contextInstance->date();

			return;
		}

		if ( is_search() ) {
			$this->graphs[] = 'SearchResultsPage';
			$this->context  = $contextInstance->search();

			return;
		}

		if ( is_404() ) {
			$this->context = $contextInstance->notFound();
		}
	}

	/**
	 * Determines the smart graphs and context for singular pages.
	 *
	 * @since 4.2.6
	 *
	 * @param  Context $contextInstance The Context class instance.
	 * @return void
	 */
	protected function determineContextSingular( $contextInstance ) {
		// Check if we're on a BuddyPress member page.
		if ( function_exists( 'bp_is_user' ) && bp_is_user() ) {
			$this->graphs[] = 'ProfilePage';
		}

		// If the current request is for the validator, we can't include the default graph here.
		// We need to include the default graph that the validator sent.
		// Don't do this if we're in Pro since we then need to get it from the post meta.
		if ( ! $this->generatingValidatorOutput ) {
			$this->graphs[] = $this->getDefaultPostGraph();
		}

		$this->context = $contextInstance->post();
	}

	/**
	 * Returns the default graph for the post type.
	 *
	 * @since 4.2.6
	 *
	 * @return string The default graph.
	 */
	public function getDefaultPostGraph() {
		return $this->getDefaultPostTypeGraph();
	}

	/**
	 * Returns the default graph for the current post type.
	 *
	 * @since 4.2.5
	 *
	 * @param  \WP_Post $post The post object.
	 * @return string         The default graph.
	 */
	public function getDefaultPostTypeGraph( $post = null ) {
		$post = $post ? $post : aioseo()->helpers->getPost();
		if ( ! is_a( $post, 'WP_Post' ) ) {
			return '';
		}

		$dynamicOptions = aioseo()->dynamicOptions->noConflict();
		if ( ! $dynamicOptions->searchAppearance->postTypes->has( $post->post_type ) ) {
			return '';
		}

		$defaultType = $dynamicOptions->searchAppearance->postTypes->{$post->post_type}->schemaType;
		switch ( $defaultType ) {
			case 'Article':
				return $dynamicOptions->searchAppearance->postTypes->{$post->post_type}->articleType;
			case 'WebPage':
				return $dynamicOptions->searchAppearance->postTypes->{$post->post_type}->webPageType;
			default:
				return $defaultType;
		}
	}

	/**
	 * Returns the default graphs that should be output on every page, regardless of its type.
	 *
	 * @since 4.2.5
	 *
	 * @return array The default graphs.
	 */
	protected function getDefaultGraphs() {
		$siteRepresents = ucfirst( aioseo()->options->searchAppearance->global->schema->siteRepresents );

		return [
			'BreadcrumbList',
			'Kg' . $siteRepresents,
			'WebSite'
		];
	}
}