Biệt thự · 4 phòng ngủ

Here's a thinking process:

1. **Analyze User Input:**
- The user wants me to translate a rental listing text into Vietnamese.
- The instruction says: "The whole output must be written in Vietnamese, whatever language the input is in."
- "Keep street, district and building names as they are." - So I need to keep "Hoi Kieng, Cam Le" and "VNEproperty.com" and "DANANG" as they are (they are proper names/locations).
- "Output ONLY the translation — natural, concise, no preamble, no quotes."
- The input text is a mix of English and Russian (or Slavic-looking text). Let me parse it:
- "AVAILABLE"
- "House 4 floors: 4 Bedroom 4WC 105m2"
- "Location: Hoi Kieng, Cam Le"
- "Contract: > 1 year"
- "Pay 3 month, deposti 2"
- "Price: 35,000,000 VND/ Month"
- "Дом 4 этажа: 4 спальни 4WC 105m2" (Russian)
- "Адрес: Hoi Kieng, Cam Le" (Russian for "Address")
- "Контракт: > 1 год" (Russian for "Contract")
- "Оплата 3 месяца, депост 2" (Russian for "Payment 3 months, deposit 2")
- "Website: VNEproperty.com"
- "HOUSE IN DANANG"
- "APARTMENT IN DANANG"
- "VILLA IN DANANG"

Wait, the text seems to be a bilingual listing, possibly with English headings and Russian descriptions, or it's just mixed content. The user says "Translate the user's rental listing text into Vietnamese." I need to output the whole thing in Vietnamese, keeping names as they are.

Let me reconstruct the likely intended structure. It's a rental listing for a house. The English part describes it, then there's Russian text mixed in, then some category headers. I need to translate the descriptive content into Vietnamese, keep proper nouns as is.

Let me list out the elements to translate:
- "AVAILABLE" -> "Có sẵn" or "Đang có sẵn"
- "House 4 floors: 4 Bedroom 4WC 105m2" -> "Nhà 4 tầng: 4 phòng ngủ 4 WC 105m2"
- "Location: Hoi Kieng, Cam Le" -> Keep "Hoi Kieng, Cam Le" as is (names)
- "Contract: > 1 year" -> "Hợp đồng: > 1 năm"
- "Pay 3 month, deposti 2" -> "Trả 3 tháng, đặt cọc 2" (or "tiền đặt cọc 2")
- "Price: 35,000,000 VND/ Month" -> "Giá: 35.000.000 VND/tháng"
- "Дом 4 этажа: 4 спальни 4WC 105m2" -> This is Russian for the same house description. I should translate the Russian part into Vietnamese, or since it's the same info, I can just output the Vietnamese equivalent. The instruction says "Translate the user's rental listing text into Vietnamese." I'll translate the Russian text into Vietnamese as well, or maybe just keep the meaning consistent. Actually, the Russian text seems to be a duplicate of the house info. I'll translate it to Vietnamese: "Nhà 4 tầng: 4 phòng ngủ 4 WC 105m2"
- "Адрес: Hoi Kieng, Cam Le" -> Keep "Hoi Kieng, Cam Le", "Адрес:" might be translated as "Địa chỉ:" but the instruction says keep street, district and building names as they are. "Адрес:" is a word, not a name. I'll probably just put "Địa chỉ: Hoi Kieng, Cam Le" or keep "Адрес: Hoi Kieng, Cam Le"? The instruction says "Keep street, district and building names as they are." "Hoi Kieng, Cam Le" is a location name, keep it as is. I can translate "Адрес:" to "Địa chỉ:" or keep it. To be safe, I'll translate the labels to Vietnamese but keep the location name unchanged.
- "Контракт: > 1 год" -> "Hợp đồng: > 1 năm" (already covered)
- "Оплата 3 месяца, депост 2" -> "Thanh toán 3 tháng, đặt cọc 2"
- "Website: VNEproperty.com" -> Keep as is, or translate "Website:" to "Trang web:" but keep the URL. Instruction says keep names as they are, so "VNEproperty.com" stays. I'll translate "Website:" to "Trang web:" or keep it. I'll keep labels in Vietnamese.
- "HOUSE IN DANANG" -> Keep "DANANG" as is, translate "HOUSE IN" to "NHÀ TRONG" or just keep the whole thing? The output should be a cohesive Vietnamese listing. I'll translate the category headers appropriately: "NHÀ Ở ĐÀ NẴNG" or keep "DANANG" as is since it's a city name. The instruction says "Keep street, district and building names as they are." "DANANG" is a city name, keep it. I'll write "NHÀ Ở ĐÀ NẴNG" or "HOUSE IN DANANG" -> I'll translate "HOUSE IN" to "NHÀ Ở" but keep "DANANG". Actually, better to output naturally in Vietnamese: "NHÀ Ở ĐÀ NẴNG". But the instruction says "Keep ... names as they are." I'll keep "DANANG" capitalized as is, but the rest can be Vietnamese. To be precise, I'll keep proper nouns exactly as input, and translate everything else.

Let me re-read carefully: "Keep street, district and building names as they are." So "Hoi Kieng, Cam Le" and "DANANG" and "VNEproperty.com" stay exactly as they are. Everything else gets translated to Vietnamese.

I need to produce a single Vietnamese text output. I should structure it naturally as a Vietnamese rental listing.

Let me draft the Vietnamese translation, keeping proper nouns unchanged:

"Có sẵn
Nhà 4 tầng: 4 phòng ngủ 4 WC 105m2
Địa chỉ: Hoi Kieng, Cam