Task: Error-Detect (source dataset: Relational-Tables)

Task: 
You are given a column of data from a table. Your job is to examine each value in the column, and identify if there is any clear data error in the column. An data error in the context of the column, can be values that are misspelled (typos), values that are formatted incorrectly, or values that are semantically incompatible with the rest of the column, etc., such that we can determine without ambiguity that such values are errors in the column. 

Since real-world data can vary widely in meaning and format, if you are uncertain whether a value is an error, please do not mark it as one. Only flag a value if you are confident that it is clearly a data error.

No explanation and return the final answer as a JSON object, {"obvious_error": "<CELL>"}. If you detect no error in the data, return {"obvious_error": null}.

Column:
| region                       |
|:-----------------------------|
| asia/chongqing               |
| asia/shanghai                |
| asia/harbin                  |
| asia/thimphu                 |
| asia/kolkata                 |
| asia/urumqi                  |
| asia/kashgar                 |
| asia/almaty                  |
| asia/kathmandu               |
| asia/ulaanbaatar             |
| asia/yakutsk                 |
| asia/pyongyang               |
| asia/macau                   |
| asia/jayapura                |
| asia/pontianak               |
| asia/kuching                 |
| asia/dili                    |
| asia/makassar                |
| asia/jakarta                 |
| europe/moscow                |
| europe/samara                |
| asia/yekaterinburg           |
| asia/novokuznetsk            |
| europe/volgograd             |
| asia/irkutsk                 |
| asia/krasnoyarsk             |
| asia/oral                    |
| asia/novosibirsk             |
| asia/vladivostok             |
| asia/kamchatka               |
| asia/omsk                    |
| america/belize               |
| america/santiago             |
| america/caracas              |
| europe/lisbon                |
| asia/yerevan                 |
| africa/tripoli               |
| america/santarem             |
| indiantananarivo             |
| america/vancouver            |
| europe/dublin                |
| asia/tashkent                |
| europe/warsaw                |
| europe/sofia                 |
| america/lima                 |
| asia/bishkek                 |
| europe/simferopol            |
| europe/zaporozhye            |
| america/bogota               |
| europe/sarajevo              |
| africa/nairobi               |
| pacific/efate                |
| africa/djibouti              |
| africa/lagos                 |
| europe/prague                |
| europe/paris                 |
| europe/stockholm             |
| america/panama               |
| africa/harare                |
| asia/colombo                 |
| america/tegucigalpa          |
| asia/ashgabat                |
| america/argentina/cordoba    |
| asia/bangkok                 |
| europe/madrid                |
| america/guatemala            |
| america/chicago              |
| europe/uzhgorod              |
| america/asuncion             |
| africa/casablanca            |
| africa/maputo                |
| asia/tehran                  |
| america/guayaquil            |
| america/martinique           |
| europe/amsterdam             |
| pacific/tongatapu            |
| america/bahia                |
| africa/johannesburg          |
| pacific/auckland             |
| asia/taipei                  |
| america/montreal             |
| coimbra                      |
| asia/dubai                   |
| california                   |
| asia/baku                    |
| africa/tunis                 |
| asia/nicosia                 |
| asia/aden                    |
| europe/london                |
| europe/budapest              |
| america/managua              |
| colorado                     |
| africa/gaborone              |
| africa/windhoek              |
| asia/tokyo                   |
| europe/kiev                  |
| asia/dhaka                   |
| america/monterrey            |
| europe/ljubljana             |
| indiana                      |
| europe/podgorica             |
| asia/tbilisi                 |
| america/fortaleza            |
| europe/tallinn               |
| africa/luanda                |
| indian/mauritius             |
| europe/oslo                  |
| africa/ouagadougou           |
| europe/berlin                |
| lorraine                     |
| asia/aqtobe                  |
| africa/conakry               |
| asia/kabul                   |
| europe/zagreb                |
| africa/bamako                |
| america/godthab              |
| america/recife               |
| africa/dakar                 |
| europe/andorra               |
| europe/copenhagen            |
| gujarat                      |
| america/regina               |
| europe/helsinki              |
| africa/kampala               |
| asia/jerusalem               |
| europe/luxembourg            |
| asia/karachi                 |
| america/jamaica              |
| pacific/tarawa               |
| newfoundland and labrador    |
| pacific/funafuti             |
| america/detroit              |
| maryland                     |
| new jersey                   |
| america/kentucky/louisville  |
| america/havana               |
| europe/tirane                |
| indian/comoro                |
| america/phoenix              |
| europe/chisinau              |
| lisboa                       |
| america/denver               |
| asia/vientiane               |
| europe/bratislava            |
| europe/riga                  |
| pays de la loire             |
| indian/maldives              |
| europe/minsk                 |
| america/moncton              |
| america/toronto              |
| europe/skopje                |
| africa/accra                 |
| indian/reunion               |
| africa/monrovia              |
| africa/khartoum              |
| africa/niamey                |
| vestfold                     |
| europe/rome                  |
| america/barbados             |
| africa/bangui                |
| america/anguilla             |
| america/montserrat           |
| africa/freetown              |
| kentucky                     |
| western australia            |
| africa/malabo                |
| veracruz llave               |
| africa/mogadishu             |
| america/edmonton             |
| australia/sydney             |
| america/montevideo           |
| michoacan de ocampo          |
| africa/kigali                |
| africa/blantyre              |
| africa/bujumbura             |
| campania                     |
| america/maceio               |
| england                      |
| asia/riyadh                  |
| budapest                     |
| pacific/noumea               |
| viseu                        |
| indian/mayotte               |
| europe/malta                 |
| europe/brussels              |
| africa/douala                |
| pacific/tahiti               |
| asia/baghdad                 |
| europe/athens                |
| saskatchewan                 |
| asia/beirut                  |
| america/argentina/tucuman    |
| asia/dushanbe                |
| america/cayenne              |
| stockholm                    |
| asia/samarkand               |
| europe/zurich                |
| europe/bucharest             |
| pacific/fiji                 |
| jalisco                      |
| porto                        |
| africa/ndjamena              |
| america/argentina/salta      |
| sabah                        |
| america/cayman               |
| america/argentina/jujuy      |
| africa/cairo                 |
| asia/damascus                |
| asia/qyzylorda               |
| pacific/apia                 |
| atlantic/bermuda             |
| america/grenada              |
| leiria                       |
| south carolina               |
| asia/manila                  |
| america/cuiaba               |
| europe/vilnius               |
| aquitaine                    |
| limousin                     |
| asia/amman                   |
| british columbia             |
| america/argentina/catamarca  |
| florida                      |
| bretagne                     |
| ohio                         |
| america/winnipeg             |
| uppsala                      |
| asia/aqtau                   |
| africa/lusaka                |
| america/indiana/indianapolis |
| asia/muscat                  |
| guerrero                     |
| africa/maseru                |
| asia/magadan                 |
| asia/brunei                  |
| australia/adelaide           |
| america/antigua              |
| america/belem                |
| australia/perth              |
| asia/kuwait                  |
| america/manaus               |
| missouri                     |
| vila real                    |
| africa/lome                  |
| europe/belgrade              |
| africa/algiers               |
| madrid                       |
| europe/vaduz                 |
| pacific/palau                |
| america/anchorage            |
| europe/kaliningrad           |
| africa/asmara                |
| africa/libreville            |
| pacific/guam                 |
| america/mazatlan             |
| pacific/honolulu             |
| africa/juba                  |
| africa/abidjan               |
| america/dominica             |
| america/argentina/mendoza    |
| asia/rangoon                 |
| europe/vienna                |
| africa/lubumbashi            |
| pacific/saipan               |
| america/aruba                |
| africa/banjul                |
| australia/brisbane           |