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   | AddressLine1       | Gender   | MiddleInitial   | Phone          |   Income |         NetWorth | City          | FirstName   | PostalCode   | Employer             | LastName   | AddressLine2   | State                | Country                  | NumberCars   |
|:-----------|:-------------------|:---------|:----------------|:---------------|---------:|-----------------:|:--------------|:------------|:-------------|:---------------------|:-----------|:---------------|:---------------------|:-------------------------|:-------------|
| PEL0       | 2184yolympiast5set | f        |                 | 1 712 522 6088 |   200549 |      2.22814e+06 | Faifbanks     | Neyti       | T6b2i1       | Brinkx               | PELLAND    |                | MA                   | United States of America |              |
| LED1       | q45congrexccourt   | F        |                 | 1 626 426 4298 |   446186 |      4.2515e+06  | Quegec        | TRUDh       | 77281        |                      | LEDUC      | APT. 624       | PA                   | United States of America | 5.0          |
| lat2       | 6517erxiiingwest   |          |                 | 1 524 787 8784 |   202266 |      2.43384e+06 | Hendsrson     | kreland     | 91355        |                      | latif      |                | Alberta              | United States of America | 2.0          |
| RUD3       | q1449blaoock9ark   |          |                 | 1 741 997 1688 |   210420 |      3.3098e+06  | Saiem         | Musti       | 36615        | AirPe9ductssgemicals | RUDDICK    |                | AR                   | Canada                   | 2.0          |
| JAY4       | 18354dpddcoury     | f        | M               | 1 002 194 1991 |    68405 |      3.14872e+06 | Topedo        | sqrena      | t6x1i3       | Ochkosh              | JAYAMANNE  | Apt. 619       | OR                   | Canada                   | 0.0          |
| tod5       | 14117roxvo5ostreey | M        | Z               | 1 441 371 7651 |   286085 |      3.26945e+06 | CorpysCnristi | Paulettf    | z2b1v3       |                      | todo       |                | VA                   | United States of America | 1.0          |
| Kan6       | 14697FLkR4NCEWEST  | m        | R               | 1 957 940 5980 |    23052 | 649361           | SaltiakeC8ty  | AMAoITA     | 49513        | VeraSunEhedgy        | Kanno      |                | OH                   | Canada                   | 4.0          |
| Din7       | t498applewoodwrive |          | Z               | 1 768 633 4096 |   162762 |      3.03641e+06 | Brownxviloe   | Ernrsto     | M5dwv6       | IDT                  | Dinkel     |                | Prince Edward Island | United States of America | 2.0          |
| Thi8       | 1u404galecohrt     |          |                 | 1 107 689 2155 |   383180 |      1.70648e+06 | Esc9ndido     | Toby        | V6v1q1       | AdamsRedkuecesEnervy | Thibodeaux |                | NV                   | United States of America | 3.0          |
| May9       | 25o13alexosstreet  |          |                 | 1 173 594 6096 |   157050 |      1.94508e+06 | LksAngeleq    | evwngelia   | 99716        | MGICIbvestnent       | Mayo       |                | Ontario              | United States of America | 0.0          |

TableB:
| prospect_AgeID   | prospect_AdL1                                                               | prospect_Ge   | prospect_MidIn   | prospect_Pho   |   prospect_In |     prospect_NWo | prospect_C   | prospect_FiN                | prospect_PosC   | prospect_Empl                  | prospect_NumChil   | prospect_MaSta   |   prospect_Ag |   prospect_CrRa | prospect_OOReFl   | prospect_NumCreCa   |
|:-----------------|:----------------------------------------------------------------------------|:--------------|:-----------------|:---------------|--------------:|-----------------:|:-------------|:----------------------------|:----------------|:-------------------------------|:-------------------|:-----------------|--------------:|----------------:|:------------------|:--------------------|
| Iok7501          | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |               | n                | 1-637-119-9996 |         94490 | 321776           | Baltimore    | wbwsqgtaa                   | Guudshirvcu     | FM Global                      |                    | U                |             7 |             580 | U                 |                     |
| tia7502          | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | M             |                  | 1-560-405-0048 |          7037 |      2.29232e+06 | Kitchener    | QGJWCPAPZMWHYHZTNOYSSOQBI   | wyggjewbe       | MGIC Investment                | 4.0                | S                |            48 |             683 | R                 | 2.0                 |
| AOI7503          | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy |               | u                | 1-261-306-5079 |        419269 | 969707           | Saint John   | BHGXDDPUMBESLQMNEPREPTZNNKM | YMZRQICUTHT     | Ross Stores                    | 5.0                | M                |            14 |             411 | O                 | 2.0                 |
| PJQ7504          | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | m             |                  | 1-642-299-6655 |         76681 |      3.89946e+06 | Berkeley     | Xgnvppcxgfnmawlupgfa        | Bcjuycmcen      |                                | 5.0                | W                |            29 |             818 | U                 | 9.0                 |
| SDV7505          | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      |               |                  |                |        209116 |      3.74922e+06 | Missoula     | Tfiozpstcftslqtwkgngiiwo    | Nujxguyehf      | Alliance One International     | 4.0                | U                |            69 |             370 | R                 | 7.0                 |
| Hga7506          | Ajpkrmtlcbdzr                                                               | F             | F                | 1-388-257-4273 |        212203 |      3.65853e+06 | Salinas      | fbcahlrhhjoslfzqvvwwvhk     | Neigswk         | Sally Beauty Holdings          | 0.0                | U                |            47 |             833 | O                 | 6.0                 |
| Beo7507          | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | M             | D                |                |         42018 |      1.73846e+06 | San Jose     | Dcgkohfcwyoaxckalqnkrzwq    | WNCEOQPLW       | Wisconsin Energy               | 5.0                | M                |             0 |             536 | U                 | 2.0                 |
| Qum7508          | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    |               |                  | 1-632-118-1891 |         90446 |      3.3073e+06  | Cleveland    | Vmnmcsinflxxmmifydckncc     | Cskdwtkf        | Carpenter Technology           | 0.0                | S                |            46 |             775 | R                 | 0.0                 |
| Hud7509          | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   |               | v                | 1-853-806-4986 |         16274 |      1.81642e+06 | Huntington   | Vrkbkkxkddtximspigmlbwzt    | tcxswloetdt     | Liberty Mutual Insurance Group | 1.0                | M                |             6 |             765 | R                 | 3.0                 |
| jba7510          | Ycltsquohmuugxihqyluhkoy                                                    | m             |                  | 1-220-687-2027 |         22215 |      2.59925e+06 | Paterson     | RMWCTFTLSVTMCBI             | Fkpemasoukih    | Black & Decker                 | 2.0                | M                |            22 |             555 | O                 | 6.0                 |



source_headers: AgencyID
AddressLine1
Gender
MiddleInitial
Phone
Income
NetWorth
City
FirstName
PostalCode
Employer
target_headers: prospect_AgeID
prospect_AdL1
prospect_Ge
prospect_MidIn
prospect_Pho
prospect_In
prospect_NWo
prospect_C
prospect_FiN
prospect_PosC
prospect_Empl
column_mappings: AgencyID
prospect_AgeID
AddressLine1
prospect_AdL1
Gender
prospect_Ge
MiddleInitial
prospect_MidIn
Phone
prospect_Pho
Income
prospect_In
NetWorth
prospect_NWo
City
prospect_C
FirstName
prospect_FiN
PostalCode
prospect_PosC
Employer
prospect_Empl
output: {"column_mappings": [["AgencyID", "prospect_AgeID"], ["AddressLine1", "prospect_AdL1"], ["Gender", "prospect_Ge"], ["MiddleInitial", "prospect_MidIn"], ["Phone", "prospect_Pho"], ["Income", "prospect_In"], ["NetWorth", "prospect_NWo"], ["City", "prospect_C"], ["FirstName", "prospect_FiN"], ["PostalCode", "prospect_PosC"], ["Employer", "prospect_Empl"], ["LastName", null], ["AddressLine2", null], ["State", null], ["Country", null], ["NumberCars", null]]}