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:
| line_desc                                          |
|:---------------------------------------------------|
| ob bal: outlays (gross)                            |
| mand: offsets against gross ba and outlays (total) |
| mand: offsets_ ba and ol: collections_ nonfed srcs |
| disc: offsets_ ba and ol: collections fm fed srcs  |
| disc: offsets against gross ba and outlays (total) |
| disc: additional offsets against ba only (total)   |
| mand: offsets_ ba only: antic offsetting collect   |
| mand: additional offsets against ba only (total)   |
| ob bal: change_ uncoll pymt_ fed src_ unexp        |
| ob bal: eoy: uncoll pymt_ fed src_ eoy             |
| disc: offset_ ba: chng in uncol pay_ fed src_ unex |
| ob bal: soy: uncoll pymt fed scr brought fwd oct 1 |
| mand: offsets_ ba and ol: collections fm fed srcs  |
| ba: mand: spending auth: chng uncoll pymts fed src |
| mand: outlays_ net                                 |
| outlays_ net  (disc. and mand.)                    |
| mand: offsets_ ba and ol: collect_ int_ fed secur  |
| disc: offsets_ ba only: antic offsetting collect   |
| disc: offsets_ ba and ol: collections_ nonfed srcs |
| ba: mand: approps transferred to other accounts    |
| mand: offset_ ba: chng in uncol pay_ fed src_ unex |
| disc: outlays_ net                                 |
| unob bal: transferred to other accounts            |
| ba: disc: approps transferred to other accounts    |
| ba: mand: new\unob bal of approps perm reduced     |
| ba: mand: new\unob bal of approps temp reduced     |
| ba: mand: spending auth: new\unob bal temp reduced |
| obligated balance_ end of year                     |
| ob bal: recov_ prior year unpaid obs_ unexp accts  |
| mand: budget authority_ net                        |
| budget authority_ net (disc. and mand.)            |
| ba: disc: spending auth: chng uncoll pymts fed src |
| ob bal: nonexp trans: uncol pay fed src:fm oth acc |
| ba: mand: appropriations precluded from obligation |
| ob bal: eoy: unpaid obligations                    |
| direct obs incurred: category a (by quarter)       |
| memo: budgetary resources_ subj to apportionment   |
| ba: disc: appropriations temporarily reduced       |
| direct obs incurred: category b (by project)       |
| ba: disc: appropriations precluded from obligation |
| ob bal: nonexpend trans: unpaid obs: to oth accts  |
| unob bal: unapportioned: other                     |
| ba: mand: spending auth: collected                 |
| ba: mand: spending auth: total                     |
| budget authority total (disc. and mand.)           |
| mand: budget authority_ gross                      |
| reimbursable obs incurred: category b (by project) |
| unob bal: brought forward_ oct 1                   |
| unob bal: recov of prior year unpaid obligations   |
| unob bal: unobligated balance (total)              |
| total budgetary resources (disc. and mand.)        |
| direct obligations incurred (total)                |
| obligations incurred                               |
| total budgetary resources                          |
| ob bal: obligations incurred: unexpired accounts   |
| disc: budget authority_ net                        |
| unob bal: apportioned: avail in the current period |
| unob bal: end of year                              |
| memo: budgetary resources_ direct unob bal_ eoy    |
| ba: disc: spending auth: collected                 |
| ba: disc: spending auth: total                     |
| disc: budget authority_ gross                      |
| disc: outlays from balances                        |
| disc: outlays_ gross (total)                       |
| unob bal: apportioned: anticipated                 |
| reimbursable obs incurred: category a (by quarter) |
| reimbursable obligations incurred (total)          |
| ba: mand:  borrowing authority applied repay debt  |
| disc: outlays from new authority                   |
| unob bal: adj to soy bal brought forward_ oct 1    |
| direct obs incurred: exempt from apportionment     |
| ob bal: nonexpend trans: unpaid obs: frm oth accts |
| ba: mand: spending auth:antic colls_ reimbs_ other |
| ba: mand: anticipated appropriation                |
| unob bal: apportioned: avail in subsequent periods |
| mand: outlays from balances                        |
| mand: outlays_ gross (total)                       |
| unob bal: transfers betw expired\unexpired accts   |
| ba: disc: appropriation (previously unavailable)   |
| mand: outlays from new authority                   |
| ob bal: soy: unpaid obs brought fwd_ oct 1         |
| obligated balance_ start of year                   |
| unob bal: antic recov of prior year unpaid obl     |
| unob bal: exempt fm appor: avail in current period |
| memo: budgetary resources_ exempt fm apportionment |
| ba: disc: spending auth:antic colls_ reimbs_ other |
| memo: budgetary resources_ reimb unob bal_ eoy     |
| ba: mand: appropriation (special or trust fund)    |
| ba: mand: appropriation (total)                    |
| ob bal: nonexp trans: uncol pay fed src:to oth acc |
| unob bal: transferred from other accounts          |
| ba: mand: spending auth: previously unavailable    |
| ba: mand: appropriation                            |
| ba: mand: appropriation (previously unavailable)   |
| ba: disc: approps transferred from other accounts  |
| ba: disc: appropriation (total)                    |
| ba: disc: appropriation                            |
| ba: mand: advance appropriation                    |
| ba: mand: advance appropriation (total)            |
| ba: mand: approps transferred from other accounts  |
| ba: disc: advance appropriation                    |
| ba: disc: advance appropriation (total)            |
| ba: mand: borrowing authority                      |
| ba: mand: borrowing authority (total)              |
| ba: disc: appropriation (special or trust fund)    |