{"type": "rich", "version": "1.0", "html": "<iframe src=\"https://quotewise.io/embed/quote/uqx4fh/\" width=\"600\" height=\"200\" frameborder=\"0\" allowfullscreen title=\"The duality theorems for a manifold will be derived from the corresponding ones for nets and co-n...\"></iframe>", "width": 600, "height": 200, "title": "The duality theorems for a manifold will be derived from the corresponding ones for nets and co-n...", "author_name": "Walther Mayer", "author_url": "https://quotewise.io/o/Walther_Mayer/", "provider_name": "Quotewise", "provider_url": "https://quotewise.io", "thumbnail_url": "https://quotewise.io/og/q/uqx4fh.png", "thumbnail_width": 1200, "thumbnail_height": 630, "cache_age": 86400}