Represent the dialog for retrieving similar scenarios Speaker2: where are you
Speaker1: i had to come back home (unexpected period)
Speaker2: ok, i will start alone
Represent the dialog scenario for retrieval Speaker1 had to go home because she's got period.
Represent the dialog scenario for retrieval Speaker2 sent Speaker1 a photo of man's bottom. Speaker2 made this photo in the shopping mall, on the escalator. 