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:
| City | Province | Country | IATA | Airport |
| --- | --- | --- | --- | --- |
| Aksu | Xinjiang | China | AKU | Aksu Airport |
| Almaty | — | Kazakhstan | ALA | Almaty International Airport |
| Altay | Xinjiang | China | AAT | Altay Airport |
| Amsterdam | — | Netherlands | AMS | Amsterdam Airport Schiphol |
| Ashgabat | — | Turkmenistan | ASB | Ashgabat Airport |
| Astana | — | Kazakhstan | TSE | Astana International Airport |
| Auckland | — | New Zealand | AKL | Auckland Airport |
| Baishan | Jilin | China | NBS | Changbaishan Airport |
| Baku | — | Azerbaijan | GYD | Heydar Aliyev International Airport |
| Bangkok | — | Thailand | BKK | Suvarnabhumi Airport |
| Baoshan | Yunnan | China | BSD | Baoshan Airport |
| Baotou | Inner Mongolia | China | BAV | Baotou Airport |
| Beijing | Beijing | China | PEK | Capital International Airport Hub |
| Beihai | Guangxi | China | BHY | Fucheng Airport |
| Bishkek | — | Kyrgyzstan | FRU | Manas International Airport |
| Brisbane | — | Australia | BNE | Brisbane Airport |
| Busan | — | South Korea | PUS | Gimhae International Airport |
| Cairns | — | Australia | CNS | Cairns Airport [#] |
| Cebu | — | Philippines | CEB | Mactan-Cebu International Airport |
| Changchun | Jilin | China | CGQ | Changchun Longjia International Airport |
| Changde | Hunan | China | CGD | Changde Airport |
| Changsha | Hunan | China | CSX | Changsha Huanghua International Airport |
| Changzhi | Shanxi | China | CIH | Changzhi Wangcun Airport |
| Changzhou | Jiangsu | China | CZX | Changzhou Benniu Airport |
| Chengdu | Sichuan | China | CTU | Shuangliu International Airport |
| Cheongju | — | South Korea | CJJ | Cheongju Airport |
| Chiang Mai begins 2013-12-01 | — | Thailand | CNX | Chiang Mai International Airport [*] |
| Chicago | — | United States | ORD | O'Hare International Airport [Cargo] |
| Chongqing | Chongqing | China | CKG | Jiangbei International Airport Hub |
| Daegu | — | South Korea | TAE | Daegu Airport |
| Dali | Yunnan | China | DLU | Dali Airport |
| Dalian | Liaoning | China | DLC | Zhoushuizi International Airport |
| Da Nang | — | Vietnam | DAD | Da Nang International Airport |
| Dandong | Liaoning | China | DDG | Dandong Airport |
| Daqing | Heilongjiang | China | DQA | Daqing Saertu Airport |
| Datong | Shanxi | China | DAT | Datong Airport |
| Delhi | — | India | DEL | Indira Gandhi International Airport |
| Denpasar | — | Indonesia | DPS | Ngurah Rai International Airport |
| Dhaka | — | Bangladesh | DAC | Shahjalal International Airport |
| Dubai | — | United Arab Emirates | DXB | Dubai International Airport |
| Dushanbe | — | Tajikistan | DYU | Dushanbe Airport |
| Enshi | Hubei | China | ENH | Enshi Airport |
| Frankfurt | — | Germany | FRA | Frankfurt Airport [Cargo] |
| Fukuoka | — | Japan | FUK | Fukuoka Airport |
| Fuzhou | Fujian | China | FOC | Changle International Airport |
| Ganzhou | Jiangxi | China | KOW | Ganzhou Huangjin Airport |
| Guam | — | Guam | GUM | Antonio B. Won Pat International Airport [F] |
| Guangzhou | Guangdong | China | CAN | Baiyun International Airport Hub |
| Guiyang | Guizhou | China | KWE | Longdongbao International Airport |
| Guilin | Guangxi | China | KWL | Liangjiang International Airport |
| Gwangju | — | South Korea | KWJ | Gwangju Airport [F] |
| Haikou | Hainan | China | HAK | Meilan International Airport |
| Hailar | Inner Mongolia | China | HLD | Hailar Dongshan Airport |
| Handan | Hebei | China | HDG | Handan Airport |
| Hangzhou | Zhejiang | China | HGH | Xiaoshan International Airport ^ |
| Hanoi | — | Vietnam | HAN | Noi Bai International Airport |
| Harbin | Heilongjiang | China | HRB | Taiping International Airport |
| Hefei | Anhui | China | HFE | Luogang International Airport |
| Heihe | Heilongjiang | China | HEK | Heihe Airport |
| Hiroshima | — | Japan | HIJ | Hiroshima Airport |
| Ho Chi Minh City | — | Vietnam | SGN | Tan Son Nhat International Airport |
| Hohhot | Inner Mongolia | China | HET | Hohhot Baita International Airport ^ |
| Hong Kong | — | Hong Kong | HKG | Hong Kong International Airport |
| Hotan | Xinjiang | China | HTN | Hotan Airport |
| Huangshan | Anhui | China | TXN | Huangshan Tunxi International Airport |
| Islamabad | — | Pakistan | ISB | Benazir Bhutto International Airport |
| Istanbul | — | Turkey | IST | Istanbul Atatürk Airport |
| Jakarta | — | Indonesia | CGK | Soekarno-Hatta International Airport |
| Jeddah | — | Saudi Arabia | JED | King Abdul Aziz International Airport |
| Jeju | — | South Korea | CJU | Jeju International Airport |
| Jiamusi | Heilongjiang | China | JMU | Jiamusi Airport |
| Jinan | Shandong | China | TNA | Yaoqiang International Airport |
| Jinghong | Yunnan | China | JHG | Xishuangbanna Gasa Airport |
| Ji'an | Jiangxi | China | JNG | Jinggangshan Airport |
| Jingdezhen | Jiangxi | China | JDZ | Jingdezhen Airport |
| Jining | Shandong | China | JNG | Jining Airport |
| Jiujiang | Jiangxi | China | JIU | Jiujiang Lushan Airport |
| Jiuzhaigou | Sichuan | China | JZH | Jiuzhaigou Huanglong Airport |
| Kaohsiung | — | Taiwan | KHH | Kaohsiung International Airport |
| Karamay | Xinjiang | China | KRY | Karamay Airport |
| Kashgar | Xinjiang | China | KHG | Kashgar Airport |
| Kathmandu | — | Nepal | KTM | Tribhuvan International Airport |
| Khabarovsk | — | Russia | KBV | Khabarovsk Novy Airport [F] |
| Khujand | — | Tajikistan | LBD | Khudzhand Airport |
| Ko Samui | — | Thailand | USM | Samui Airport [#] |
| Korla | Xinjiang | China | KRL | Korla Airport |
| Kuala Lumpur | — | Malaysia | KUL | Kuala Lumpur International Airport |
| Kumul | Xinjiang | China | HMI | Hami Airport |
| Kunming | Yunnan | China | KMG | Kunming Changshui International Airport |
| Kuqa | Xinjiang | China | KCA | Kuqa Airport |
| Lanzhou | Gansu | China | LHW | Lanzhou Airport |
| Laoag City | — | Philippines | LAO | Laoag International Airport [F] |
| Lhasa | Tibet | China | LXA | Lhasa Gonggar Airport |
| Lianyungang | Jiangsu | China | LYG | Lianyungang Baitabu Airport |
| Lijiang | Yunnan | China | LJG | Lijiang Airport |
| Liuzhou | Guangxi | China | LZH | Liuzhou Airport |
| Los Angeles | — | United States | LAX | Los Angeles International Airport |
| London | — | United Kingdom | LHR | London Heathrow Airport |
| Luoyang | Henan | China | LYA | Luoyang Airport |
| Luzhou | Sichuan | China | LZO | Luzhou Airport |
| Malé | — | Maldives | MLE | Malé International Airport |
| Manila | — | Philippines | MNL | Ninoy Aquino International Airport |
| Medina | — | Saudi Arabia | MED | Prince Mohammad Bin Abdulaziz Airport [#] |
| Mei County | Guangdong | China | MXZ | Meixian Airport |
| Melbourne | — | Australia | MEL | Melbourne Airport |
| Mianyang | Sichuan | China | MIG | Mianyang Nanjiao Airport |
| Milan | — | Italy | MXP | Malpensa Airport [Cargo] |
| Moscow | — | Russia | SVO | Sheremetyevo International Airport |
| Muan | — | South Korea | MWX | Muan International Airport |
| Mudanjiang | Heilongjiang | China | MDG | Mudanjiang Airport |
| Nagoya | — | Japan | NGO | Chūbu Centrair International Airport |
| Nanchang | Jiangxi | China | KHN | Nanchang Changbei International Airport ^ |
| Nanchong | Sichuan | China | NAO | Nanchong Airport |
| Nanjing | Jiangsu | China | NKG | Lukou International Airport |
| Nanning | Guangxi | China | NNG | Nanning Wuxu International Airport |
| Nantong | Jiangsu | China | NTG | Nantong Airport |
| Nanyang | Henan | China | NNY | Nanyang Airport |
| Niigata | — | Japan | KIJ | Niigata Airport |
| Ningbo | Zhejiang | China | NGB | Ningbo Lishe International Airport |
| Novosibirsk | — | Russia | OVB | Tolmachevo Airport |
| Osaka | — | Japan | KIX | Kansai International Airport |
| Osh | — | Kyrgyzstan | OSS | Osh Airport |
| Paris | — | France | CDG | Paris-Charles de Gaulle Airport |
| Penang | — | Malaysia | PEN | Penang International Airport |
| Perth | — | Australia | PER | Perth Airport |
| Phnom Penh | — | Cambodia | PNH | Phnom Penh International Airport |
| Phuket | — | Thailand | HKT | Phuket International Airport |
| Pyongyang | — | North Korea | FNJ | Pyongyang Sunan International Airport [F] |
| Qingdao | Shandong | China | TAO | Liuting International Airport |
| Qiqihar | Heilongjiang | China | NDG | Qiqihar Airport |
| Quanzhou | Fujian | China | JJN | Quanzhou Jinjiang Airport |
| Saipan | — | Northern Mariana Islands | SPN | Saipan International Airport |
| Sanya | Hainan | China | SYX | Sanya Phoenix International Airport |
| Sapporo | — | Japan | CTS | New Chitose Airport |
| Sendai | — | Japan | SDJ | Sendai Airport |
| Seoul | — | South Korea | GMP | Gimpo International Airport |
| Seoul | — | South Korea | ICN | Incheon International Airport |
| Shanghai | Shanghai | China | SHA | Hongqiao International Airport |
| Shanghai | Shanghai | China | PVG | Pudong International Airport |
| Sharjah | — | United Arab Emirates | SHJ | Sharjah International Airport [F] |
| Shantou | Guangdong | China | SWA | Jieyang Chaoshan International Airport |
| Shenyang | Liaoning | China | SHE | Taoxian International Airport |
| Shenzhen | Guangdong | China | SZX | Shenzhen Bao'an International Airport |
| Shijiazhuang | Hebei | China | SJW | Daguocun International Airport |
| Siem Reap | — | Cambodia | REP | Siem Reap International Airport |
| Singapore | — | Singapore | SIN | Changi Airport |
| Surabaya | — | Indonesia | SUB | Juanda International Airport [F] |
| Surat Thani | — | Thailand | URT | Surat Thani Airport [#] |
| Sydney | — | Australia | SYD | Sydney Airport |
| Tacheng | Xinjiang | China | TCG | Tacheng Airport |
| Taipei | — | Taiwan | TPE | Taiwan Taoyuan International Airport |
| Taiyuan | Shanxi | China | TYN | Taiyuan Wusu Airport |
| Tashkent | — | Uzbekistan | TAS | Tashkent International Airport |
| Tbilisi | — | Georgia | TBS | Tbilisi International Airport |
| Tehran | — | Iran | IKA | Imam Khomeini International Airport |
| Tianjin | Tianjin | China | TSN | Binhai International Airport ^ |
| Tokyo | — | Japan | NRT | Narita International Airport |
| Toyama | — | Japan | TOY | Toyama Airport |
| Urumqi | Xinjiang | China | URC | Diwopu International Airport Hub |
| Vancouver | — | Canada | YVR | Vancouver International Airport |
| Vienna | — | Austria | VIE | Vienna International Airport [Cargo] |
| Vientiane | — | Laos | VTE | Wattay International Airport [F] |
| Weihai | Shandong | China | WEH | Weihai Airport |
| Wenzhou | Zhejiang | China | WNZ | Wenzhou Yongqiang Airport |
| Wuhan | Hubei | China | WUH | Tianhe International Airport |
| Wuxi | Jiangsu | China | WUX | Wuxi Shuofang Airport |
| Wuyishan | Fujian | China | WUS | Nanping Wuyishan Airport |
| Xiamen | Fujian | China | XMN | Gaoqi International Airport |
| Xi'an | Shaanxi | China | XIY | Xianyang International Airport |
| Xiangfan | Hubei | China | XFN | Xiangfan Airport |
| Xining | Qinghai | China | XNN | Xining Caojiabu Airport |
| Xinyuan | Xinjiang | China | NLT | Nalati Airport |
| Xishuangbanna | Yunnan | China | JHG | Xishuangbanna Gasa Airport |
| Xuzhou | Jiangsu | China | XUZ | Xuzhou Airport |
| Yancheng | Jiangsu | China | YNZ | Yancheng Airport |
| Yangon | — | Burma | RGN | Yangon International Airport |
| Yanji | Jilin | China | YNJ | Yanji Chaoyangchuan Airport |
| Yantai | Shandong | China | YNT | Yantai Laishan International Airport |
| Yichang | Hubei | China | YIH | Yichang Airport |
| Yichun | Heilongjiang | China | LDS | Yichun Lindu Airport |
| Yinchuan | Ningxia | China | INC | Yinchuan Hedong Airport |
| Yining | Xinjiang | China | YIN | Yining Airport |
| Yiwu | Zhejiang | China | YIW | Yiwu Airport |
| Zhangjiajie | Hunan | China | DYG | Zhangjiajie Airport |
| Zhanjiang | Guangdong | China | ZHA | Zhanjiang Airport |
| Zhengzhou | Henan | China | CGO | Zhengzhou Xinzheng International Airport |
| Zhijiang | Hunan | China | HJJ | Zhijiang Airport |
| Zhongdian | Yunnan | China | DIG | Diqing Xianggelila Airport |
| Zhuhai | Guangdong | China | ZUH | Zhuhai Jinwan Airport |
| Zunyi | Guizhou | China | ZYI | Zunyi Xinzhou Airport |
Question:
Which city's IATA is nkg?
Answer:
Nanjing