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:
| Governorate | Name in Russian | Name in Polish | Seat | Area, in thousands of km 2 | Population, in thousands,( 1905 ) |
| --- | --- | --- | --- | --- | --- |
| Warsaw Governorate | Варшавская губерния | Gubernia warszawska | Warszawa | 176.0 | 2233.0 |
| Kalisz Governorate | Калишская губерния | Gubernia kaliska | Kalisz | 113.0 | 964.0 |
| Kielce Governorate | Келецкая губерния | Gubernia kielecka | Kielce | 102.0 | 899.0 |
| Łomża Governorate | Ломжинская губерния | Gubernia lubelska | Łomża | 106.0 | 645.0 |
| Lublin Governorate | Люблинская губерния | Gubernia łomżyńska | Lublin | 169.0 | 1341.0 |
| Piotrków Governorate | Петроковская губерния | Gubernia piotrkowska | Piotrków | 122.0 | 1640.0 |
| Płock Governorate | Плоцкая губерния | Gubernia płocka | Płock | 94.0 | 613.0 |
| Radom Governorate | Радомская губерния | Gubernia radomska | Radom | 124.0 | 917.0 |
| Siedlce Governorate | Седлецкая губерния | Gubernia siedlecka | Siedlce | 143.0 | 894.0 |
Question:
Who, in Polish, governs a location with a population of 1640 (in thousands)?
Answer:
Gubernia piotrkowska