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:
| description                                                                                                                                                                                                             |
|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| excursions                                                                                                                                                                                                              |
| courses_ school_ seminars for uzh employees_ participation in congresses_ conferences and workshop aiming for knowledge transfer                                                                                        |
| various personnel cost_ e.g. company outings_ employee reasons_ christmas dinner_ apéros                                                                                                                                |
| specialist literature_ books_ monographics_ separate volume and continued volumes_ antiquated and new                                                                                                                   |
| printed papers_ publications_ cartography_ book binder workd_ repro offset                                                                                                                                              |
| photocopies_ unbound and loose                                                                                                                                                                                          |
| media_ band_ disks_ cd_ memory sticks_ videotapes_ printer consumables_ toner_ ink cartridges_ colour ribbon_ edp wire_ network cable_ switches_ electronic devices_ sundries_ repair material_ usb adapter_ patch wire |
| other equipment and other consumable materials                                                                                                                                                                          |
| adhesive labels_ stamps_ archive boxes_ magnets                                                                                                                                                                         |
| telephone and fax_ telephone charges_ telephone subscription_ mobile phone cost                                                                                                                                         |