I have some problems understand hay should we do the url on your image page to replace tumbnail.jpg
Ejemple.
- <spanitemprop="name">Jane Doe</spanitemprop="name">
- <imgsrc="janedoe.jpg"itemprop="image"></imgsrc="janedoe.jpg"itemprop="image">
Adapting to my site
Dario Vieira Pereira

This seems to be correct and it works
But my problem is when i want to do a videoobjet
I can not make the tumbnail to appear on the video to show:
ejemple:
Vídeo: Instalaciones clínica dental Barcelona Propdental
Video de las instalaciones de la nueva clínica dental Barcelona de Propdental. Tour virtual por las instalaciones del dentista.
Can anyone helpme on what am i doing wrong because i cannot understand what is missing on my videoobjet schema with google ejemples