Task: Schema-Matching (source dataset: prospect)

Task: 
Please identify the matching columns between Table A and Table B. For each column in Table A, specify the corresponding column in Table B. If a column in A has no corresponding column in Table B, you can map it to null. Represent each column mapping using a pair of column headers in a list, i.e., [Table A Column, Table B column or null]. Provide the mapping for each column in Table A and return all mappings in a list.

No explanation and return the matching columns in a structured JSON format: {"column_mappings": <a list of column pairs>}.

TableA:
| AgencyID   |         NetWorth | OwnOrRentFlag   | CreditRating   | MiddleInitial   | Country               |   Income | NumberCreditCards   | City          | AddressLine2   | Employer             | Age   | AddressLine1       | NumberChildren   | FirstName   | LastName   | Gender   | PostalCode   |
|:-----------|-----------------:|:----------------|:---------------|:----------------|:----------------------|---------:|:--------------------|:--------------|:---------------|:---------------------|:------|:-------------------|:-----------------|:------------|:-----------|:---------|:-------------|
| PEL0       |      3.35137e+06 | O               | 484.0          |                 | jnitedqtatesorAmerida |   401519 |                     | Fairbanos     |                | Brunks               | 5.0   | 21947olympiac6reet | 0.0              | Net5i       | PELLAND    | f        | T6b 1i1      |
| LED1       |      2.87511e+06 | U               | 603.0          |                 | Uhi6edStatesofsme4ica |   233647 | 0.0                 | Quebef        | APT6q4         |                      | 8.0   | w55cong5esscourt   | 2.0              | T5UDY       | LEDUC      | F        | 77281        |
| lat2       |      3.4154e+06  | O               | 618.0          |                 | UniredStatesidsmerica |   175352 | 3.0                 | Heneerson     |                |                      |       | 6617fraiiijgwest   | 3.0              | irrland     | latif      |          | 91355        |
| RUD3       | 380290           | O               |                |                 | Cajada                |   293484 | 6.0                 | Sal3m         |                | xiroroducrsChemicqls | 38.0  | 11e48bkalockpark   | 1.0              | Misfi       | RUDDICK    |          | 36615        |
| JAY4       |      3.13512e+06 | O               | 538.0          | M               | Cansda                |    20825 | 4.0                 | roledo        | qpt619         | Oshlosh              | 9.0   | q8354doddciurt     | 1.0              | sareba      | JAYAMANNE  | f        | t6a 1i3      |
| tod5       |      2.2601e+06  | R               | 672.0          | Z               | UnjtedStatrsofAneroca |   329568 | 4.0                 | CidpusChristi |                |                      | 13.0  | 14117roxb9rlstree6 | 2.0              | Paukette    | todo       | M        | A2b 1v3      |
| Kan6       |      2.759e+06   | O               | 546.0          | R               | xanada                |   240187 | 3.0                 | SalhLakesity  |                | VerqSunEnerfy        | 73.0  | 24697Fi9RENCEWESy  | 4.0              | AMAoITA     | Kanno      | m        | 49513        |
| Din7       |      3.39226e+06 | U               | 727.0          | Z               | UnitfdStatesodAm3gica |   289643 | 3.0                 | Brownevilie   |                | IDT                  | 89.0  | 6588apllewooddrige | 2.0              | wrnesto     | Dinkel     |          | M5d 1v6      |
| Thi8       |      3.16366e+06 | O               | 575.0          |                 | UgitedSta5faofAmerica |   202773 | 1.0                 | Edcondido     |                | Adamsfesourdes2nergg | 55.0  | q7404falecourt     |                  | Toby        | Thibodeaux |          | V6c 1q1      |
| May9       |      1.71976e+06 | O               | 359.0          |                 | Un7ffdStatesofAmerifa |    74805 |                     | poeAngeles    |                | jGICInvewtment       | 49.0  | 15i13zlexissfreet  | 1.0              | egangelia   | Mayo       |          | 99716        |

TableB:
| AgencyID   |         NetWorth | OwnOrRentFlag   |   CreditRating | MiddleInitial   | Country                  |   Income | NumberCreditCards   | City       | AddressLine2                                                      | Employer                       |   Age | AddressLine1                                                                | NumberChildren   | FirstName                   | State   | Phone          |   NumberCars | MaritalStatus   |
|:-----------|-----------------:|:----------------|---------------:|:----------------|:-------------------------|---------:|:--------------------|:-----------|:------------------------------------------------------------------|:-------------------------------|------:|:----------------------------------------------------------------------------|:-----------------|:----------------------------|:--------|:---------------|-------------:|:----------------|
| Iok7501    | 321776           | U               |            580 | n               | United States of America |    94490 |                     | Baltimore  | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           | FM Global                      |     7 | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |                  | wbwsqgtaa                   | MO      | 1-637-119-9996 |            3 | U               |
| tia7502    |      2.29232e+06 | R               |            683 |                 | Canada                   |     7037 | 2.0                 | Kitchener  | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn | MGIC Investment                |    48 | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | 4.0              | QGJWCPAPZMWHYHZTNOYSSOQBI   | TX      | 1-560-405-0048 |            4 | S               |
| AOI7503    | 969707           | O               |            411 | u               |                          |   419269 | 2.0                 | Saint John | Cdrxeolwrrxmwmhgexvcstvzz                                         | Ross Stores                    |    14 | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | 5.0              | BHGXDDPUMBESLQMNEPREPTZNNKM | CT      | 1-261-306-5079 |            1 | M               |
| PJQ7504    |      3.89946e+06 | U               |            818 |                 | United States of America |    76681 | 9.0                 | Berkeley   | WKSBVOFGJHQGAEKUYRZHHPH                                           |                                |    29 | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | 5.0              | Xgnvppcxgfnmawlupgfa        | UT      | 1-642-299-6655 |            4 | W               |
| SDV7505    |      3.74922e+06 | R               |            370 |                 | United States of America |   209116 | 7.0                 | Missoula   | skxijfqpzshmts                                                    | Alliance One International     |    69 | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | 4.0              | Tfiozpstcftslqtwkgngiiwo    | RI      |                |            2 | U               |
| Hga7506    |      3.65853e+06 | O               |            833 | F               |                          |   212203 | 6.0                 | Salinas    | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       | Sally Beauty Holdings          |    47 | Ajpkrmtlcbdzr                                                               | 0.0              | fbcahlrhhjoslfzqvvwwvhk     | DE      | 1-388-257-4273 |            0 | U               |
| Beo7507    |      1.73846e+06 | U               |            536 | D               | Canada                   |    42018 | 2.0                 | San Jose   | LJXAXKUJXQBGWBHJJAAM                                              | Wisconsin Energy               |     0 | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | 5.0              | Dcgkohfcwyoaxckalqnkrzwq    | NM      |                |            5 | M               |
| Qum7508    |      3.3073e+06  | R               |            775 |                 | United States of America |    90446 | 0.0                 | Cleveland  | Jmlgjkjbqhrudrkqrm                                                | Carpenter Technology           |    46 | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | 0.0              | Vmnmcsinflxxmmifydckncc     | WV      | 1-632-118-1891 |            0 | S               |
| Hud7509    |      1.81642e+06 | R               |            765 | v               | United States of America |    16274 | 3.0                 | Huntington | Qqcilgblxyikgr                                                    | Liberty Mutual Insurance Group |     6 | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | 1.0              | Vrkbkkxkddtximspigmlbwzt    | NH      | 1-853-806-4986 |            1 | M               |
| jba7510    |      2.59925e+06 | O               |            555 |                 | Canada                   |    22215 | 6.0                 | Paterson   | Ahtohqjfzfarn                                                     | Black & Decker                 |    22 | Ycltsquohmuugxihqyluhkoy                                                    | 2.0              | RMWCTFTLSVTMCBI             | WY      | 1-220-687-2027 |            5 | M               |



source_headers: AgencyID
NetWorth
OwnOrRentFlag
CreditRating
MiddleInitial
Country
Income
NumberCreditCards
City
AddressLine2
Employer
Age
AddressLine1
NumberChildren
FirstName
target_headers: AgencyID
NetWorth
OwnOrRentFlag
CreditRating
MiddleInitial
Country
Income
NumberCreditCards
City
AddressLine2
Employer
Age
AddressLine1
NumberChildren
FirstName
column_mappings: AgencyID
AgencyID
NetWorth
NetWorth
OwnOrRentFlag
OwnOrRentFlag
CreditRating
CreditRating
MiddleInitial
MiddleInitial
Country
Country
Income
Income
NumberCreditCards
NumberCreditCards
City
City
AddressLine2
AddressLine2
Employer
Employer
Age
Age
AddressLine1
AddressLine1
NumberChildren
NumberChildren
FirstName
FirstName
output: {"column_mappings": [["AgencyID", "AgencyID"], ["NetWorth", "NetWorth"], ["OwnOrRentFlag", "OwnOrRentFlag"], ["CreditRating", "CreditRating"], ["MiddleInitial", "MiddleInitial"], ["Country", "Country"], ["Income", "Income"], ["NumberCreditCards", "NumberCreditCards"], ["City", "City"], ["AddressLine2", "AddressLine2"], ["Employer", "Employer"], ["Age", "Age"], ["AddressLine1", "AddressLine1"], ["NumberChildren", "NumberChildren"], ["FirstName", "FirstName"], ["LastName", null], ["Gender", null], ["PostalCode", null]]}