{"type":"rich","version":"1.0","title":"Preparation of materials","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/YbF1tOTqIiirH4PD/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/61b175b4e4ea2228ab1f83c3\" frameborder=\"0\" allowfullscreen></iframe>"}