Task: Error-Detect (source dataset: Spreadsheet-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:
| jugador                             |
|:------------------------------------|
| azofra sierra_ francisco javier     |
| benítez domínguez_ rafael           |
| benítez ormazábal_ josé antonio     |
| bernedo izquierdo_ diego            |
| borrallo perez-coca_ paulino        |
| calleja duaso_ luis                 |
| camara garcia_ koldo                |
| cateura arroyo_ nieves              |
| clavijo rioja_ alberto              |
| cuesta esteban_ juan carlos         |
| cuevas lópez de murillas_ raúl      |
| d´harcourt bauluz_ miguel           |
| del pozo sierra_ jesús              |
| establie delgado_ cayetano          |
| fernández lafuente_ ernesto         |
| galicia paredes_ antonio            |
| garcía faugeras_ luis alberto       |
| gonzález jiménez_ josé enrique      |
| gurrutxaga gutierrez_ jon ander     |
| herrero martínez_ bernabé           |
| herrero rubio_ francisco moisés     |
| huarte gimeno_ santiago             |
| hyde_ maryn                         |
| iriarte jauregui_ gema              |
| izquierdo santamaría_ jesús         |
| izquierdo santamaria_ juan ramon    |
| lasa sanz_ pedro                    |
| lasheras sánchez_ diego             |
| lavilla lopez_ francisco            |
| lazcano-iturburu ayestarán_ javier  |
| losada vázquez_ gerardo             |
| malanda cuesta_ alejandro           |
| manso ramos_ victor francisco       |
| martinez lopez_ jose ignacio        |
| medrano sadaba_ fernando            |
| melendo ruiz_ alfredo               |
| miralles mtz-portillo_ antonio      |
| miranda sainz_ felipe santiago      |
| muñoz landa_ felix honorio          |
| murugarren garea_ carlos enrique    |
| otaño martínez-portillo_ luis migue |
| otero gonzález_ luis ángel          |
| peña azofra_ jesús                  |
| peña hernández_ rené                |
| peña ordoñez_ arturo                |
| pereda garcia_ luis miguel          |
| pérez sedano_ oscar                 |
| plo hermosilla_ jose manuel         |
| rodríguez gómez-ulate_ eugenio      |
| romero sáez_ francisco javier       |
| ruiz de azúa de torre_ david        |
| ruiz de ubago grijalba_ cristobal   |
| salas moreno_ luis maría            |
| salas villanueva_ luis              |
| sanchez ortun_ ager                 |
| santaolalla calvo_ pablo            |
| segurola gomez_ javier              |
| tobalina solas_ javier              |
| tulloch _ iain keith                |
| ubis alesanco_ eduardo              |
| unamuno iñurritegui_ xabier         |
| urrutia lópez_ roberto              |
| viguera martínez_ eduardo           |
| villaverde alonso_ fco javier       |
| viniegra novoa_ alberto             |
| viniegra pérez_ alberto             |
| wu_ jianda                          |