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:
| hashtags in tweet                                                      |
|:-----------------------------------------------------------------------|
| marketing digital                                                      |
| machinelearning ai iot bigdata                                         |
| statistics bigdata                                                     |
| enterprise leaders startup intrapreneur                                |
| smes digitalworkplace business                                         |
| enterprise startup                                                     |
| cfoeast                                                                |
| analytics humanresources management data                               |
| cinonyc                                                                |
| bigdata dataasia                                                       |
| leadership businessstrategy                                            |
| enterprise                                                             |
| bigdata analytics                                                      |
| analytics customerinsight disruption                                   |
| bigdata marketing                                                      |
| marketing business                                                     |
| anticorruption                                                         |
| organizations bigdata analytics                                        |
| internetofthings data iot tech                                         |
| marketingautomation ai digitalization                                  |
| bigdata bi dashboard businessintelligence indik                        |
| filming filmproduction                                                 |
| bigdata analytics healthcare                                           |
| bigdata cdo chiefdatany                                                |
| marketing bigdata                                                      |
| data                                                                   |
| analytics data                                                         |
| dataanalytics bigdata                                                  |
| cio dataprivacy                                                        |
| mlearning                                                              |
| foresight startups strategy                                            |
| strategytalk strategy                                                  |
| digitaltransformation                                                  |
| machinelearning ai iot                                                 |
| strategy csoldn                                                        |
| devops                                                                 |
| seo cw                                                                 |
| cw contentmarketing                                                    |
| business innovation                                                    |
| healthcare analytics businessanalytics bi                              |
| data privacy cdo                                                       |
| bigdata analytics hongkong                                             |
| real analytics latency sap bigdata                                     |
| innovation                                                             |
| innovation cinoasia                                                    |
| provider innovation                                                    |
| disruption innovation                                                  |
| sales                                                                  |
| womeninstrategy                                                        |
| strategy                                                               |
| security cyber tech iot                                                |
| analytics                                                              |
| digileaders                                                            |
| statistics big                                                         |
| technologybusinessmanagement bpm cfo cio                               |
| tbm                                                                    |
| dataanalytics sportstech                                               |
| sportslondon designperformance sportstech                              |
| banks foundational platforms datawarehouses bigdata                    |
| digimarketing                                                          |
| bigdata data                                                           |
| business marketing                                                     |
| cfo disruption finance cfocontrol cpecredits                           |
| internet data                                                          |
| cybersecurity cio governance                                           |
| internet data iot leadership                                           |
| cybersecurity cio governance leadership                                |
| internet data iot tech                                                 |
| bigdata analytic analytics                                             |
| cio                                                                    |
| finance epm                                                            |
| digihealth                                                             |
| iot                                                                    |
| bigdata                                                                |
| devops myths sqlserver oracle agile                                    |
| onlinetools freelancers                                                |
| bigdata banking                                                        |
| bigdata banking fintech tech                                           |
| batman dataasia                                                        |
| digitaldivide                                                          |
| analytics tibco spotfire                                               |
| analytics tibco                                                        |
| ceo cso cmo cfo                                                        |
| foresightanalytics predictablegrowth predictiveanalytics ceo           |
| technologybusinessmanagement bpm cfo cio itspending                    |
| rapidchange global companies sustainable riskmanagement                |
| risk riskmanagement crisismanagement businesscontinuity                |
| transformationalchange businesscontinuity risk                         |
| customer strategy growth cso emotion                                   |
| cso emotionalinsights growth emotion                                   |
| emotionalconnection                                                    |
| innovation productinnovation                                           |
| growth innovation growth cmo ceo cfo predictiveanalytics               |
| profitablegrowth growth ceo cfo                                        |
| profitablegrowth growthstrategies midmarket companies profitablegrowth |
| innovation productinnovation innovationculture                         |
| integration finance fpawest                                            |
| consumeremotions brand                                                 |
| peopleanalytics hr                                                     |
| businesstravel agile tech technology innovation                        |
| privacy internetofthings                                               |
| business innovation innovate                                           |
| business data strategy leaders analytics wednesdaywisdom               |
| data christmas analytics bigdata holidays                              |
| analytics data predictiveanalytics tech bigdata                        |
| tv broadcasting twitter digipub digimarketing                          |
| analytics humanresources management data bigdata                       |
| future innovate innovation wednesdaywisdom                             |
| security cyber tech iot cybersecurity cyberaware                       |
| tech business newyear2017 strategy wednesdaywisdom                     |
| innovative innovation tech                                             |
| newyear it tech informationmanagement data                             |
| innovative                                                             |
| enterprise startup innovation                                          |
| cio innovation                                                         |
| sqlserver                                                              |
| bigdata datascience                                                    |
| userinterfacedesign                                                    |
| bigda                                                                  |
| data bigdata                                                           |
| cancer smalldata bigdata                                               |
| bigdata datascience analytics datalake                                 |
| nyc                                                                    |
| cfos cfoeast boston                                                    |
| earlybird fpaeast                                                      |
| tax finance cfoeast                                                    |
| finance                                                                |
| ai bigdata digitalmarketing                                            |
| bigdata health                                                         |
| iot bigdata                                                            |
| it                                                                     |
| leadership innovation                                                  |
| bigdata digital                                                        |
| bank bigdata                                                           |
| cloud cto itmanagement                                                 |
| seo                                                                    |
| cio bigdata analytics                                                  |
| innovation digital vr                                                  |
| finance banking                                                        |
| bigdata cloud cybersecurity                                            |
| deepdata bigdata analytics                                             |
| careers                                                                |
| bigdata applications                                                   |
| bigdata crm                                                            |
| innovation cio                                                         |
| tech                                                                   |
| superearlybird hongkong                                                |
| digitalmarketing strategy hongkong                                     |
| digimarketing digistrat                                                |
| mobile17 digimarketing                                                 |
| cfoeast boston trends                                                  |
| technologies future cfoeast cfo                                        |
| ifrs finance fpawest                                                   |
| startup finances cfoeast cfo                                           |
| mobile17                                                               |
| vegas sopvegas supplychain sop ibp                                     |
| ai digimarketing                                                       |
| digimarketing brandstrategy                                            |
| cybersecurity                                                          |
| profit cfoeast cfo                                                     |
| efficiency finance fpa                                                 |
| digipub                                                                |
| chiefinnovationofficer cinoasia                                        |
| followers leaders womeninstrategy                                      |
| womeninstrategy nyc                                                    |
| digistratny                                                            |
| digistratny digimarketing mobile17                                     |
| innovation data insights bigdata                                       |
| anomaly analytics digital bigdata webinars                             |
| digitizing it bigdata                                                  |
| mdmsf                                                                  |
| digimarketing digistratny                                              |
| dataasia superearlybird                                                |
| branding digital advertising                                           |
| digiasia                                                               |
| cfoeast workshops networking cfos                                      |
| sopvegas sop                                                           |
| merger finance cfoeast                                                 |
| digidesign                                                             |
| bigdata banking finance                                                |
| ai                                                                     |
| sopvegas                                                               |
| supplychain sop sopvegas                                               |
| digipub digimarketing                                                  |
| brandstrategy digistratny                                              |
| ai digihealth                                                          |