Represent the dialog for retrieving similar scenarios Speaker1: Have you seen this?
Speaker1: <flie_photo>
Speaker4: ahahahahah
Speaker3: I've seen it, it's ridiculous!
Speaker2: the worst designed building in Europe arguably! 
Represent the dialog scenario for retrieval Speaker1 has shown Speaker4, Speaker3 and Speaker2 a picture of a badly designed building from Europe.
Represent the dialog scenario for retrieval Speaker1 saw America's got talent. He sent a link to Speaker2.