Title: Qasr-e Shirin County
Content:  Qasr-e-Shirin County is a county in Kermanshah Province in Iran, part of what is unofficially referred to as Iranian Kurdistan. The capital of the county is Qasr-e Shirin. At the 2006 census, the county's population was 25,000, in 4,999 families. The county is subdivided into two districts: the Central District and Sumar District. The county has two cities: Qasr-e Shirin and Sumar.
Title: Qasr-e Shirin
Content:  Qasr-e Shirin (also Romanized as Qaşr-e Shīrīn and Qasr-ī-Shīrīn; also known as Ghasr-ī-shīrīn and Ghasr-shīrīn, Kurdish: قەسری شیرین) is a city and capital of Qasr-e Shirin County, Kermanshah Province, Iran. At the 2006 census, its population was 15,437, in 3,893 families. The city is populated by Kurds.
Title: Central District (Qasr-e Shirin County)
Content:  The Central District of Qasr-e Shirin County is a district (bakhsh) in Qasr-e Shirin County, Kermanshah Province, Iran. At the 2006 census, its population was 19,574, in 4,920 families. The District has one city: Qasr-e Shirin. The District has three rural districts (dehestan): Alvand Rural District, Fathabad Rural District, and Nasrabad Rural District.
Title: Shiraz County
Content:  Shiraz County is a county in Fars Province in Iran. The capital of the county is Shiraz. At the 2006 census, the county's population (including those portions later split off to form Kavar County, Sarvestan County, and Kharameh County) was 1,676,927 in 427,268 families; excluding those portions, the population was 1,512,680, in 389,659 families. The county is subdivided into three districts: the Central District, Zarqan District, and Arzhan District. The county has six cities: Shiraz, Lapui, Darian, Sadra, Zarqan & Khaneh Zenyan.
Title: Qir and Karzin County
Content:  Qir and Karzin County ( - Shahrestan Qir va Karzin) is a county in Fars Province, Iran. The capital of the county is Qir. At the 2006 census, the county's population was 61,432 with 13,246 families. The county is subdivided into two districts: the Central District and Efzar District. The county has five cities: Efzar, Qir, Karzin, Emam Shahr & Mobarakabad.
Title: Qasr-e Qand County
Content:  Qasr-e Qand County is a county in Sistan and Baluchestan Province in Iran. The capital of the county is Qasr-e Qand. The county was established by splitting the territory from Nik Shahr County in 2013. At the 2006 census, the county's population was 51,973, in 9,816 families. The county is subdivided into three districts (bakhsh): the Central District, Sarbuk District, and Talang District. The county has one city: Qasr-e Qand.
Title: Qasr-e Shirin
Content:  Qasr-e Shirin has for long played an important economical role in the region. A large share of the country's exports is done via Qasr-e Shirin with its two main border points Khosravi and Parviz Khan border crossing. Qasr-e Shirin has many modern and chic restaurants, with four three-star hotels and many other two-star hotels, serving both pilgrims to Iraq's holy Shia shrines and tourists and businessmen visiting the city. In fact, it is the city of hotels and restaurants.
Title: Kashan County
Content:  Kashan County is a county in Isfahan Province in Iran. The capital of the county is Kashan. As of the 2016 census, the county's population was 364,482, in 112,258 households. The county is subdivided into four districts: the Central District, Qamsar District, Neyasar District, and Barzok District. The county has eight cities: Kashan, Meshkat, Barzok, Jowshaqan va Kamu, Damaneh, Neyasar, Qamsar & Kamu va Chugan.
Title: Saqqez County
Content:  Saqqez County ( Šaharstān-e Saqqez; Sorani Kurdish: سه‌قز) is a county in Kordestan Province in Iran. The capital of the county is Saqqez. At the 2006 census, the county's population was 205,250, in 45,909 families. The county is subdivided into four districts: the Central District, Sarshiv District, Emam District and Ziviyeh District. The county has three cities: Saqqez, Saheb and Santeh
Title: Shirvan County
Content:  Shirvan County is a county in North Khorasan Province in Iran. The capital of the county is Shirvan. At the 2006 census, the county's population was 152,493, in 37,647 families. The county has three districts: Central District, Sarhad District, and Qushkhaneh District. The county has four cities: Lujali, Ziarat, Qush Khaneh and Shirvan. Kurmanji Kurds, Persians, Khorasani Turks, and Tats are the largest ethnic groups in the county. A small Jewish population was noted to be present also, numbering only five.

Question: What is the capital of Qasr-e Shirin County?
Answer: Qasr-e Shirin.