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   | Age   | NumberCreditCards   | MiddleInitial   | State              | MaritalStatus   | NumberCars   | FirstName   | Gender   | City          |         NetWorth | AddressLine1       | NumberChildren   | OwnOrRentFlag   | Phone          | LastName   | AddressLine2   | PostalCode   |
|:-----------|:------|:--------------------|:----------------|:-------------------|:----------------|:-------------|:------------|:---------|:--------------|-----------------:|:-------------------|:-----------------|:----------------|:---------------|:-----------|:---------------|:-------------|
| PEL0       | 82.0  |                     |                 | MA                 | W               |              | Negti       | f        | Fairbahks     |      3.4015e+06  | 21847llympuaztreet | 3.0              | O               | 1 712 522 6088 | PELLAND    |                | T6b 1i1      |
| LED1       | 71.0  | 6.0                 |                 | PA                 | U               | 1.0          | TRUDh       | F        | auebec        |      4.96286e+06 | 245congrssscou5y   | 2.0              | U               | 1 626 426 4298 | LEDUC      | APT. 624       | 77281        |
| lat2       |       | 2.0                 |                 | Alverta            | S               | 3.0          | irepand     |          | Hend3rson     |      2.02091e+06 | 6r1ufrailingqest   | 4.0              | O               | 1 524 787 8784 | latif      |                | 91355        |
| RUD3       | 62.0  | 2.0                 |                 | AR                 | W               | 1.0          | Mksti       |          | Salej         | 925302           | q1449hlalockpa5k   | 3.0              | O               | 1 741 997 1688 | RUDDICK    |                | 36615        |
| JAY4       | 163.0 | 8.0                 | M               | OR                 | M               | 6.0          | sxrena      | f        | T8ledo        |      1.72098e+06 | 18r54doddcourf     | 3.0              | O               | 1 002 194 1991 | JAYAMANNE  | Apt. 619       | t6a 1i3      |
| tod5       | 33.0  | 9.0                 | Z               | VA                 | M               | 3.0          | Paulet4e    | M        | sorpusCnristi | 450692           | 14117roxboriatreft | 4.0              | R               | 1 441 371 7651 | todo       |                | A2b 1v3      |
| Kan6       | 149.0 | 4.0                 | R               | OH                 |                 | 1.0          | AMApITA     | m        | SqltLajeCity  |      1.54132e+06 | 24698FoOREgCEWEST  | 6.0              | O               | 1 957 940 5980 | Kanno      |                | 49513        |
| Din7       | 105.0 | 3.0                 | Z               | PrinceEewzrdIslqnd | M               | 4.0          | Ernest9     |          | frownsviloe   |      4.39317e+06 | 6488wpple1oiddrive | 0.0              | U               | 1 768 633 4096 | Dinkel     |                | M5d 1v6      |
| Thi8       | 92.0  | 7.0                 |                 | NV                 | U               | 2.0          | Toby        |          | Escondivo     |      2.29304e+06 | 17t04talecourt     |                  | O               | 1 107 689 2155 | Thibodeaux |                | V6c 1q1      |
| May9       | 46.0  |                     |                 | kntario            | M               | 4.0          | ebangelia   |          | LosAhgelex    |      1.56478e+06 | 159q2alexisztreet  | 2.0              | O               | 1 173 594 6096 | Mayo       |                | 99716        |

TableB:
| AgeID   |   Ag | NuCreCar   | MiIni   | Sta   | MaSt   |   NumC | FiNa                        | Ge   | C          |            NeWor | AddrL1                                                                      | NumCh   | OOReF   | Ph             | Cou                      |     In |   CrRa | Empl                           |
|:--------|-----:|:-----------|:--------|:------|:-------|-------:|:----------------------------|:-----|:-----------|-----------------:|:----------------------------------------------------------------------------|:--------|:--------|:---------------|:-------------------------|-------:|-------:|:-------------------------------|
| Iok7501 |    7 |            | n       | MO    | U      |      3 | wbwsqgtaa                   |      | Baltimore  | 321776           | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |         | U       | 1-637-119-9996 | United States of America |  94490 |    580 | FM Global                      |
| tia7502 |   48 | 2.0        |         | TX    | S      |      4 | QGJWCPAPZMWHYHZTNOYSSOQBI   | M    | Kitchener  |      2.29232e+06 | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | 4.0     | R       | 1-560-405-0048 | Canada                   |   7037 |    683 | MGIC Investment                |
| AOI7503 |   14 | 2.0        | u       | CT    | M      |      1 | BHGXDDPUMBESLQMNEPREPTZNNKM |      | Saint John | 969707           | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | 5.0     | O       | 1-261-306-5079 |                          | 419269 |    411 | Ross Stores                    |
| PJQ7504 |   29 | 9.0        |         | UT    | W      |      4 | Xgnvppcxgfnmawlupgfa        | m    | Berkeley   |      3.89946e+06 | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | 5.0     | U       | 1-642-299-6655 | United States of America |  76681 |    818 |                                |
| SDV7505 |   69 | 7.0        |         | RI    | U      |      2 | Tfiozpstcftslqtwkgngiiwo    |      | Missoula   |      3.74922e+06 | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | 4.0     | R       |                | United States of America | 209116 |    370 | Alliance One International     |
| Hga7506 |   47 | 6.0        | F       | DE    | U      |      0 | fbcahlrhhjoslfzqvvwwvhk     | F    | Salinas    |      3.65853e+06 | Ajpkrmtlcbdzr                                                               | 0.0     | O       | 1-388-257-4273 |                          | 212203 |    833 | Sally Beauty Holdings          |
| Beo7507 |    0 | 2.0        | D       | NM    | M      |      5 | Dcgkohfcwyoaxckalqnkrzwq    | M    | San Jose   |      1.73846e+06 | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | 5.0     | U       |                | Canada                   |  42018 |    536 | Wisconsin Energy               |
| Qum7508 |   46 | 0.0        |         | WV    | S      |      0 | Vmnmcsinflxxmmifydckncc     |      | Cleveland  |      3.3073e+06  | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | 0.0     | R       | 1-632-118-1891 | United States of America |  90446 |    775 | Carpenter Technology           |
| Hud7509 |    6 | 3.0        | v       | NH    | M      |      1 | Vrkbkkxkddtximspigmlbwzt    |      | Huntington |      1.81642e+06 | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | 1.0     | R       | 1-853-806-4986 | United States of America |  16274 |    765 | Liberty Mutual Insurance Group |
| jba7510 |   22 | 6.0        |         | WY    | M      |      5 | RMWCTFTLSVTMCBI             | m    | Paterson   |      2.59925e+06 | Ycltsquohmuugxihqyluhkoy                                                    | 2.0     | O       | 1-220-687-2027 | Canada                   |  22215 |    555 | Black & Decker                 |



source_headers: AgencyID
Age
NumberCreditCards
MiddleInitial
State
MaritalStatus
NumberCars
FirstName
Gender
City
NetWorth
AddressLine1
NumberChildren
OwnOrRentFlag
Phone
target_headers: AgeID
Ag
NuCreCar
MiIni
Sta
MaSt
NumC
FiNa
Ge
C
NeWor
AddrL1
NumCh
OOReF
Ph
column_mappings: AgencyID
AgeID
Age
Ag
NumberCreditCards
NuCreCar
MiddleInitial
MiIni
State
Sta
MaritalStatus
MaSt
NumberCars
NumC
FirstName
FiNa
Gender
Ge
City
C
NetWorth
NeWor
AddressLine1
AddrL1
NumberChildren
NumCh
OwnOrRentFlag
OOReF
Phone
Ph
output: {"column_mappings": [["AgencyID", "AgeID"], ["Age", "Ag"], ["NumberCreditCards", "NuCreCar"], ["MiddleInitial", "MiIni"], ["State", "Sta"], ["MaritalStatus", "MaSt"], ["NumberCars", "NumC"], ["FirstName", "FiNa"], ["Gender", "Ge"], ["City", "C"], ["NetWorth", "NeWor"], ["AddressLine1", "AddrL1"], ["NumberChildren", "NumCh"], ["OwnOrRentFlag", "OOReF"], ["Phone", "Ph"], ["LastName", null], ["AddressLine2", null], ["PostalCode", null]]}