{"type":"rich","version":"1.0","title":"39-40.Principy předpjatého betonu","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/Xt52C66wtXxzt88C/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5ede760baeb0b57c73b7cf02\" frameborder=\"0\" allowfullscreen></iframe>"}