### Instruction: Change the following passage to past tense
### Input: The episode focuses on two people: an elderly hospital doctor (Aleksander Bardini), who lives by himself in the ubiquitous Dekalog apartment block; and Dorota Geller (Krystyna Janda), a woman in her 30s who lives in the same building and is a violinist with the Philharmonic Orchestra.
### Response: The episode focused on two people: an elderly hospital doctor (Aleksander Bardini), who lived by himself in the ubiquitous Dekalog apartment block; and Dorota Geller (Krystyna Janda), a woman in her 30s who lived in the same building and was a violinist with the Philharmonic Orchestra.