The text "Schwajda György: Mari" appears to be a name followed by a title, likely referring to a work (possibly a book or a piece of music) by the author György Schwajda. The title "Mari" remains the same in English, as it is likely a proper noun. Therefore, the full translation would be: "György Schwajda: Mari"

The author's play, written in 1986, was performed by the theater group.