Represent the dialog for retrieving similar scenarios Speaker2: Have you seen the Mars photos?
Speaker1: Amazing!
Speaker2: How about this one? <file_pic>
Speaker1: LOL! That's hilarious!
Speaker2: LOL!
Represent the dialog scenario for retrieval Speaker2 shares a Mars photo with Speaker1. 
Represent the dialog scenario for retrieval Speaker1 loves Speaker2 and Speaker2 loves Speaker1. 