Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Country | Film title used in nomination | Language | Original title | Director |
| --- | --- | --- | --- | --- |
| Brazil | John, the Knife and the River | Portuguese | A Faca E o Rio | George Sluizer |
| Czechoslovakia | Days of Betrayal | Czech | Dny zrady | Otakar Vávra |
| Egypt | Empire M | Arabic | إمبراطورية ميم | Hussein Kamal |
| Finland | The Land of Our Ancesters | Finnish | Maa on syntinen laulu | Rauni Mollberg |
| France | Day for Night | France | La Nuit américaine | François Truffaut |
| East Germany | The Third | German | Der Dritte | Egon Günther |
| West Germany | The Pedestrian | German | Der Fußgänger | Maximilian Schell |
| Hungary | Photography | Hungarian | Fotográfia | Pál Zolnay |
| India | Saudagar | Hindi | सौदागर | Sudhendu Roy |
| Israel | The House on Chelouche Street | Hebrew | בית ברחוב שלוש | Moshé Mizrahi |
| Japan | Coup d'État | Japanese | 戒厳令 | Yoshishige Yoshida |
| South Korea | Mute Samyong | Korean | 비련의 벙어리 삼용 | Byeon Jang-ho |
| Mexico | Reed: Insurgent Mexico | Spanish | Reed, México insurgente | Paul Leduc |
| Netherlands | Turkish Delight | Dutch | Turks fruit | Paul Verhoeven |
| Poland | Copernicus | Polish | Kopernik | Ewa Petelska and Czesław Petelski |
| Romania | Veronica | Romanian | Veronica | Elisabeta Bostan |
| Spain | Habla, mudita | Spanish | Habla, mudita | Manuel Gutiérrez Aragón |
| Switzerland | L'Invitation | French | L'Invitation | Claude Goretta |
| Soviet Union | Liberation | Russian | Освобождение | Yuri Ozerov |
| Yugoslavia | The Battle of Sutjeska | Serbo-Croatian | Sutjeska | Stipe Delić |
Question:
What director is from Poland?
Answer:
Ewa Petelska and Czesław Petelski