Represent the dialog for retrieving similar scenarios Speaker2: Do you know how to turn on this hub?
Speaker2: <photo_file>
Speaker1: There should be a power switch somewhere
Speaker3: The green one 
Represent the dialog scenario for retrieval Speaker2 does not know how to turn on the hub. The green power switch turns on the hub.
Represent the dialog scenario for retrieval Speaker1 will pay Speaker2 a visit tonight to discuss a personal matter.