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:
| propietario                          |
|:-------------------------------------|
| aeroturbo de colombia                |
| agmo nubes inver.s.a.s               |
| agras s.a.s                          |
| agricola bufalera de colombia        |
| agroindustriales del oriente         |
| agroinversiones corocito             |
| agrovimart s.a.                      |
| alberto mendoza y otro               |
| alcaldia                             |
| aleida jeronimo navas                |
| alexander rivera                     |
| aliar s.a.                           |
| andres carvajal molina               |
| andres d. londoño t.                 |
| angelica vega                        |
| armando aragon navia                 |
| armando sanchez m.                   |
| asa s en c                           |
| asojuncal                            |
| berney rodriguez                     |
| camaguey s.a.                        |
| carlos e. contreras                  |
| carlos e. guerrero                   |
| carmen a. cabezas perez              |
| carmen naranjo                       |
| celmira barragan f.                  |
| cepcolsa                             |
| club la libelula                     |
| comercializadora el proveedor ltda.  |
| corregimiento                        |
| criagan s.a.                         |
| cupertino cuevas d.                  |
| desarrollos metropolitanos           |
| diego torres nuñez                   |
| dioselino acosta                     |
| dora avella vda.de pan               |
| ecopetrol                            |
| edgar meza ortiz                     |
| efa ltda.                            |
| el rastro 1 s.a.s.                   |
| elias acosta y cia ltda              |
| elizabeth cruz bulla                 |
| empresa guacharacas                  |
| fac                                  |
| fadelce ltda                         |
| farca s.a. - comodato                |
| fernando tovar tamayo                |
| francelina cadena                    |
| fumigar                              |
| german erazo                         |
| gloria l.tiuso                       |
| gloria m. alvira r.                  |
| gobernacion                          |
| gramercy s.a.s.                      |
| guaicaramo s.a.                      |
| heli cala lopez                      |
| henry d. f. ortiz silva              |
| hernando jimenez                     |
| hocol s.a.                           |
| incauca                              |
| incora ltda                          |
| ingenio pichichi s.a.                |
| ingenio risaralda                    |
| irma hernandez de m.                 |
| javier chinchilla munar              |
| jeremias vaca riaño                  |
| jorge agudelo restrepo               |
| jorge e. salazar b.                  |
| jorge solano recio                   |
| jose a. vargas p.                    |
| jose nelson perez r.                 |
| julian valencia i. y otros           |
| julio strauch d.                     |
| klaus puth aranguren                 |
| los gansos 1 s.a.s.                  |
| luis f. castillo santos              |
| luis jose cala lopez                 |
| luz marina vargas                    |
| madygan s.a.s.                       |
| manuel lopez ortega                  |
| margot uribe de samper y cia         |
| maria a pache ochoa                  |
| maria del s. montoya                 |
| maria lucila reyes ordoñez           |
| martha y. vargas de r.               |
| mauricio cala perez                  |
| mauricio e. vasquez m.               |
| mauricio medina niño                 |
| mauricio torres cubides              |
| milton a. salazar rey                |
| monica colombia ltda.                |
| muletos s.a.s.                       |
| municipio                            |
| nebio echeverry                      |
| nelly valencia                       |
| nelly zarate                         |
| new granada energy                   |
| nora carvajalino                     |
| o.v. orozco y cia. s.c.a.            |
| p.vicente perales                    |
| palmas de tumaco s.a.                |
| palmas sicarare s.a.s.               |
| paula andrea cano a.                 |
| rafael quesada                       |
| regulo gama ojeda                    |
| resguardo indigena                   |
| resguardo indigena oripga            |
| rodolfo mendez                       |
| saac s.a.s                           |
| santiago pulido niño                 |
| sao e.u                              |
| serestel s.a.                        |
| sigra s.a.                           |
| sociedad colombian natural resources |
| sociedad cultivos san jose           |
| sociedad garrido                     |