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:
| closed_by                      |
|:-------------------------------|
| tirumala dandagala             |
| philip wilhelm                 |
| purushotham lakshmannagari     |
| bindu poosa                    |
| sai manoj kumar nakkina        |
| mammar rashid                  |
| jeremiah johnson               |
| monica reena rai               |
| sravani potala                 |
| saiteja guvvala                |
| santhosh kumaran duraisamy     |
| suma oggisetty                 |
| shawn denham                   |
| ranjith kumar pulabala         |
| kathy roberts                  |
| eric tripp                     |
| keith blystone                 |
| chaitanya uppalapati           |
| manjula manoharan              |
| hochoon lee                    |
| sibiprasanth sakthivel         |
| deepa krishnamoorthy           |
| curtis cologna                 |
| steve thaanum                  |
| kathleen roberts               |
| richard viviano                |
| glenn (lee) braaten            |
| hans loback                    |
| suresh selvamoorthy            |
| ganesh thirugnana sambandam    |
| nirosan sivalingam             |
| jeff scott                     |
| jamie tennant                  |
| sam bolinger                   |
| sandeep chada                  |
| clint simmons                  |
| lee braaten                    |
| prabal malla                   |
| kaarthikeyan raghupathy        |
| arunkumar kolakaluri           |
| rakesh annapureddy             |
| venkata rakesh annapureddy     |
| azmath khan                    |
| brian pederslie                |
| jon christianson               |
| ramesh babu malempati          |
| vasantha kumar murugesan       |
| muqtadir abdul                 |
| muhammad jasim                 |
| jaganmohan rao                 |
| nishanth padma                 |
| niraj shrestha                 |
| william burger                 |
| nasir mohammad                 |
| santhosh padiyath prabhakaran  |
| ramesh malempati               |
| rob glasser                    |
| jill jenkins                   |
| jathin dandeboyina             |
| bhuvan madasamy                |
| venkatesh s                    |
| anandan selvam                 |
| luke medcalf                   |
| yasaswi (yash) mahadasu        |
| emil engelman                  |
| roshankumar ramanathan         |
| james hanna                    |
| allen lydecker                 |
| john michaels                  |
| kevin null                     |
| brian boyd                     |
| dennis johnson                 |
| sameer mohammed                |
| ramu nagalla                   |
| yasaswi mahadasu               |
| cris sierra                    |
| craig dayton                   |
| timothy staley                 |
| josh dalziel                   |
| sriharsha chintakunta          |
| yi lee                         |
| siva sankar.s                  |
| molly chanawatr                |
| henry drew                     |
| sathish arumugam               |
| jackshan james                 |
| siva sankar manikanta kanakala |
| michael (mike) sancrant        |
| santhosh padiyath              |