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:
| vertex 2        |
|:----------------|
| ireneros        |
| pbesh           |
| mattbrehmer     |
| weblyzard       |
| xtophe_bontemps |
| scoopit         |
| tecgirl         |
| lrtrln          |
| iyisak          |
| derhess         |
| nikanorovalbert |
| lindaregber     |
| tableau         |
| tableaupublic   |
| cuencaparavivir |
| fbogeo          |
| nrchtct         |
| jennifergardy   |
| hikinghack      |
| renci           |
| iamgeorgekamau  |
| c_z             |
| cybunk          |
| jsndyks         |
| zingchart       |
| v_woolf         |
| bronwenjm       |
| duto_guerra     |
| diessouza       |
| openvisconf     |
| theahmedsherif  |
| dataviz_catalog |
| innarliiv       |
| jimhsu774792    |
| aaizemberg      |
| fbalbach        |
| voxdotcom       |
| nytimes         |
| ewhitmore       |
| eagereyes       |
| alexartandros   |
| molleindustria  |
| bwjones         |
| sonicviz        |
| kensmith        |
| combit          |
| prasannare      |
| miniver         |
| billyroland2    |
| thestackscat    |
| sfdesignweek    |
| designmap       |
| astridts        |
| seeksanusername |
| tillnm          |
| visualinsight   |
| simonwehr       |
| drsimonestumpf  |
| openhypervideo  |
| excelcharts     |
| polinode        |
| bobbynorton     |
| kenherold       |
| vsecz           |
| fit_ctu         |
| wsj             |
| lamthuyvo       |
| albertocairo    |
| buhtum_2010     |
| iamctodd        |
| mia_out         |
| vkuhn           |
| alirachelpearl  |
| r_gestaalt      |
| ksmithgreen     |
| clickz          |
| namwkim85       |
| plotandscatter  |
| frcfr           |
| ocad            |
| visualisingdata |
| ekansa          |
| naypinya        |
| lizannep        |
| kboughida       |
| digipresnews    |
| nasim_mahmud    |
| brandacad       |
| mabeecher       |
| dotdashwong     |
| tamaramunzner   |
| engagetheo      |
| ameliamn        |
| uclab_potsdam   |
| emilygarfield   |
| francoislaberge |
| d3js_org        |
| puppetlabs      |
| docker          |
| kstate_bigdata  |
| shapefiie       |
| gfalquet        |
| ddbkultur       |
| cogries         |
| schroederkatrin |
| healthcaredive  |
| khornbaek       |
| galka_max       |
| kiuzhack        |
| verdewek        |
| infoplusconf    |
| urbane_zukunft  |
| siamakfs        |
| goinvo          |
| jonfollett      |
| intlspectator   |
| jenstirrup      |
| csischester     |
| uocscieng       |
| nigeljohn12     |
| ritsos_p        |
| nikitajer       |
| rasmus_stuff    |
| suecurrell      |
| dfallman        |
| vogon           |
| michelet        |
| johnthackara    |
| chi2016_kansai  |
| pydatacarolinas |
| f_dion          |
| chenhe_infoviz  |
| drcegme         |
| r_herreraf      |
| bjoernsten      |
| lindholmen      |
| liu_university  |
| phemeeu         |
| madestro        |
| playmonarch     |
| cardboardnews   |
| vani_murarka    |
| vani_tech       |
| informationlab  |
| auchmill        |
| andrewxhill     |
| brokencodebot   |
| mlujic          |
| vanemaz         |
| tweetchup       |
| fhpotsdam       |
| mmarie          |
| jansru          |
| haptoma         |
| sr_visual_info  |
| sphericon       |
| meghkeaney      |
| textyorgua      |
| produktbezogen  |
| chelm           |
| xmacex          |
| we_color        |
| crouchingbadger |
| stackexchange   |
| yuliss79        |
| lalibrebe       |
| miskaknapek     |
| deckerlibrary   |
| ia              |
| storybench      |
| dmimno          |
| alsinosko       |
| infobeautiful   |
| mperezmontoro   |
| amagitakayosi   |
| ryan_kirk       |
| asistsiged      |
| asist           |
| master_iw_fhp   |
| asist_ah        |
| saradevine      |
| raconteur       |
| risk_literacy   |
| magneticnorth   |
| iddux           |
| greenescientist |
| queensu         |
| maish           |
| termontonews    |
| visualoop       |
| tomhal99        |
| stegue88        |
| mbostock        |
| veltman         |
| sugibuchi       |
| storify         |
| design_decode   |
| kristw          |
| twitter         |
| guardian        |
| quadrigram      |
| lgrammel        |
| sclaeyssens     |
| espejolento     |
| tmrhyne         |
| romankulchynsky |
| cdiazjr4        |
| aarrieta        |
| flygirltwo      |
| jannahuang      |
| darpa           |
| upbeatwednesday |
| zoescope        |
| scottberinato   |
| ssireview       |
| hrbrmstr        |
| wired           |
| theeconomist    |
| dataisbeautiful |
| jburnmurdoch    |
| propublica      |
| lenagroeger     |
| mzzcolby        |
| infomnivore     |
| rickmunoz       |
| lydiacbyrne     |
| sp_meta         |
| isprs2016prague |
| acolt           |
| geovis_isprs    |
| cpettit47       |
| daniel_rehn     |
| generativestuff |
| denisparra      |
| j_barria        |
| msftresearch    |
| aquigley        |
| sachi_research  |
| sdpope          |
| drnickparsons   |
| snurb_dot_info  |
| kwanliuma       |
| bongshin        |
| nelmqvist       |
| sharoz          |
| nathriche       |
| charles_perin   |
| feijigirl       |
| infogram        |
| soldham         |
| phasitschka     |
| infoinaction    |
| doc_soc         |
| bianchiserique  |
| northeastern    |
| kyraedeker      |
| fhpwerkschau    |
| davidgotz       |
| sidfernando     |
| superterrific   |
| coursera        |
| rab7599         |
| wolfgangaigner  |
| ecmtechnews     |
| eytanadar       |
| s_designtools   |
| becsta94        |
| bwhear21        |
| jog13           |
| georgmir        |
| woodlandsisters |
| kitware         |
| hkohle          |
| benbendc        |
| jackleonardme   |
| shoha99         |
| uncsils         |
| olitab          |
| beeyen          |
| _beeyen         |
| _ecmtechnews    |
| rsimmon         |
| flowingdata     |
| opendatacity    |
| pluscha         |
| peterpaws       |
| johnpowersus    |
| aconica         |
| martin_backes   |
| octodc          |
| pulselabkampala |
| as_map          |
| _asmap          |
| asmapfr         |
| bizcom          |
| umiacs          |
| umdcs           |
| hcil_umd        |
| genomics_doc    |
| atulbutte       |
| phocion         |
| stevefaeembra   |
| underdarkgis    |
| mryankeeslicker |
| stphnpunzalan   |
| _m_space        |
| scheidegger     |
| frankrausch     |
| tangiblemind    |
| quinnanya       |
| ncsaatillinois  |
| purdue          |
| profilegrid     |
| vbyrdphd        |
| tapia_con       |
| dustinfreeman   |
| kanitw          |
| domoritz        |
| arvindsatya1    |
| uwdata          |
| jheer           |
| alxndrkalinin   |
| jeffrey_heer    |
| smithsonianmag  |
| pomeranian99    |
| ieeevis         |
| uw              |
| uwcse           |
| arsduo          |
| esjewett        |
| joe_hellerstein |
| tap             |
| bpviz           |
| minoritypostdoc |
| arnicas         |
| noahi           |
| janwillemtulp   |
| rjbeecham       |
| gicentre        |
| cagatay_turkay  |
| johntstasko     |
| tomplanki       |
| bhopecart       |
| hubspot         |
| socialmedia2day |
| marketingcharts |
| mattvigil       |
| csteinlehner    |
| neveram0de      |
| csenews         |
| davidrumseymaps |
| macloo          |
| hcil            |
| umdresearch     |
| umdscience      |
| bls_gov         |
| laescude        |
| uxbastard       |
| qirex           |
| philogb         |
| dr_tj           |
| posttypography  |
| baltimorebrew   |
| sig_chi         |
| dmrussell       |
| senacomunica    |
| colciencias     |
| utpereira       |
| juanibarral_t   |
| dsalamancad     |
| stoker          |
| digitag         |
| patjwu          |
| crazyarchitect  |
| hadleywickham   |
| rachelshadoan   |
| fmanjoo         |
| elwoodjparker   |
| nikolai3d       |
| marionurban     |
| maleski         |
| preetisaluja    |
| giorgialupi     |
| vanschneider    |
| johnmaeda       |
| iconjurer       |
| engadget        |
| pokemongoradar  |
| juanibls        |
| stojg           |
| sminnee         |
| drgwm           |