{"type":"rich","version":"1.0","title":"Anken             \n CnH2n(n ≥ 2) ","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/Ynk_C57qHbBkyYGk/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/62793f0b9eea1db064c981a4\" frameborder=\"0\" allowfullscreen></iframe>"}