Provide the theme summaries for the following conversation: 

Don: <file_photo> Can anybody guess who is in that picture?
Sam: Salomea
Marge: Salomea
Sam: haha first!
Marge: :D or @Martha
Sam: she looks like Martha hahaha
Don: yeah. Salmonella
Hollie: :D
Don: ;)
Sam: and a little bit like our Dominique
Don: <file_photo>
Marge: youve been to ukraine @Don? where exactly?
Don: <file_photo> Lvov, opera
Marge: envy, have to go there too one day

Summary: 
Don went to the opera in Lvov and saw Salomea.