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:
| number of samples by environment                                                                                                                                        |
|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| water (non-saline): 89                                                                                                                                                  |
| soil (non-saline): 24                                                                                                                                                   |
| animal corpus: 4_ water (saline): 3_ surface (saline): 40                                                                                                               |
| sediment (saline): 278                                                                                                                                                  |
| sediment (saline): 51                                                                                                                                                   |
| water (non-saline): 35_ animal distal gut: 35_ soil (non-saline): 21_ animal surface: 21_ water (saline): 21_ animal secretion: 21_ sediment (non-saline): 21           |
| water (saline): 130                                                                                                                                                     |
| water (non-saline): 77_ soil (non-saline): 923                                                                                                                          |
| soil (non-saline): 30                                                                                                                                                   |
| surface (saline): 96                                                                                                                                                    |
| soil (non-saline): 14                                                                                                                                                   |
| sediment (non-saline): 44                                                                                                                                               |
| soil (non-saline): 15                                                                                                                                                   |
| surface (non-saline): 21                                                                                                                                                |
| sediment (saline): 7                                                                                                                                                    |
| soil (non-saline): 2                                                                                                                                                    |
| soil (non-saline): 48                                                                                                                                                   |
| water (non-saline): 7_ water (saline): 12_ sediment (saline): 2                                                                                                         |
| soil (non-saline): 230                                                                                                                                                  |
| water (saline): 8                                                                                                                                                       |
| animal distal gut: 2015                                                                                                                                                 |
| soil (non-saline): 3_ surface (non-saline): 3                                                                                                                           |
| sediment (saline): 60                                                                                                                                                   |
| animal corpus: 49_ plant corpus: 10                                                                                                                                     |
| water (non-saline): 14_ animal distal gut: 9_ surface (non-saline): 441                                                                                                 |
| plant surface: 339                                                                                                                                                      |
| water (non-saline): 3_ animal distal gut: 64_ animal surface: 190                                                                                                       |
| water (non-saline): 1147                                                                                                                                                |
| animal secretion: 56                                                                                                                                                    |
| animal distal gut: 100                                                                                                                                                  |
| soil (non-saline): 708                                                                                                                                                  |
| soil (non-saline): 18_ plant rhizosphere: 9                                                                                                                             |
| soil (non-saline): 100_ plant rhizosphere: 79_ plant corpus: 170                                                                                                        |
| soil (non-saline): 150                                                                                                                                                  |
| soil (non-saline): 12                                                                                                                                                   |
| soil (non-saline): 90                                                                                                                                                   |
| soil (non-saline): 119_ animal corpus: 2                                                                                                                                |
| soil (non-saline): 68                                                                                                                                                   |
| soil (non-saline): 21                                                                                                                                                   |
| water (non-saline): 2_ water (saline): 12_ sediment (saline): 8_ sediment (non-saline): 1_ hypersaline (saline): 2                                                      |
| water (non-saline): 49                                                                                                                                                  |
| soil (non-saline): 56                                                                                                                                                   |
| animal distal gut: 93                                                                                                                                                   |
| animal corpus: 391                                                                                                                                                      |
| sediment (saline): 106                                                                                                                                                  |
| sediment (saline): 61                                                                                                                                                   |
| water (saline): 73                                                                                                                                                      |
| water (saline): 268                                                                                                                                                     |
| water (saline): 156                                                                                                                                                     |
| water (non-saline): 96                                                                                                                                                  |
| water (non-saline): 1506                                                                                                                                                |
| soil (non-saline): 65                                                                                                                                                   |
| animal proximal gut: 318                                                                                                                                                |
| animal distal gut: 96                                                                                                                                                   |
| water (non-saline): 188_ soil (non-saline): 279_ animal secretion: 190_ aerosol (non-saline): 89                                                                        |
| soil (non-saline): 95                                                                                                                                                   |
| soil (non-saline): 35                                                                                                                                                   |
| animal distal gut: 1_ soil (non-saline): 127                                                                                                                            |
| water (saline): 4_ sediment (saline): 11_ hypersaline (saline): 11                                                                                                      |
| animal distal gut: 184                                                                                                                                                  |
| sediment (non-saline): 353                                                                                                                                              |
| sediment (saline): 13_ sediment (non-saline): 5                                                                                                                         |
| animal surface: 608                                                                                                                                                     |
| water (non-saline): 10_ soil (non-saline): 320_ plant rhizosphere: 310                                                                                                  |
| animal surface: 161                                                                                                                                                     |
| sediment (saline): 26                                                                                                                                                   |
| soil (non-saline): 152                                                                                                                                                  |
| soil (non-saline): 92                                                                                                                                                   |
| animal surface: 571                                                                                                                                                     |
| animal distal gut: 160                                                                                                                                                  |
| soil (non-saline): 22                                                                                                                                                   |
| soil (non-saline): 78                                                                                                                                                   |
| soil (non-saline): 36                                                                                                                                                   |
| soil (non-saline): 26                                                                                                                                                   |
| soil (non-saline): 63                                                                                                                                                   |
| soil (non-saline): 43                                                                                                                                                   |
| soil (non-saline): 295                                                                                                                                                  |
| animal distal gut: 72                                                                                                                                                   |
| animal distal gut: 642                                                                                                                                                  |
| water (non-saline): 3_ animal distal gut: 49_ soil (non-saline): 4_ animal surface: 64_ animal secretion: 53_ surface (non-saline): 24_ plant corpus: 18                |
| animal surface: 230_ animal secretion: 2                                                                                                                                |
| animal distal gut: 36_ animal proximal gut: 88                                                                                                                          |
| animal distal gut: 135_ animal surface: 313_ animal secretion: 207                                                                                                      |
| animal corpus: 156                                                                                                                                                      |
| water (non-saline): 2719_ soil (non-saline): 105_ water (saline): 35_ surface (non-saline): 252_ sediment (saline): 47_ sediment (non-saline): 152_ surface (saline): 1 |
| water (saline): 55                                                                                                                                                      |
| animal distal gut: 167                                                                                                                                                  |
| animal surface: 620_ animal secretion: 315_ surface (non-saline): 690                                                                                                   |
| plant surface: 1388                                                                                                                                                     |