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 | Age   | AddressLine1         | CreditRating   | State                | Employer                 | MaritalStatus   |   Income | PostalCode   | NumberCars   | LastName   | FirstName   | MiddleInitial   | Gender   | AddressLine2   |
|:-----------|-----------------:|:------|:---------------------|:---------------|:---------------------|:-------------------------|:----------------|---------:|:-------------|:-------------|:-----------|:------------|:----------------|:---------|:---------------|
| PEL0       |      1.05887e+06 | 20.0  | 21847 olympia street | 760.0          | MA                   | Brink's                  | W               |   368776 | T6b 1i1      |              | PELLAND    | Netti       |                 | f        |                |
| LED1       |      1.98818e+06 | 3.0   | 245 congress court   | 555.0          | PA                   |                          | U               |   177967 | 77281        | 5.0          | LEDUC      | TRUDY       |                 | F        | APT. 624       |
| lat2       |      3.67313e+06 |       | 6517 frailing west   | 566.0          | Alberta              |                          | S               |   321772 | 91355        | 2.0          | latif      | ireland     |                 |          |                |
| RUD3       |      2.0059e+06  | 77.0  | 11449 blalock park   |                | AR                   | Air Products & Chemicals | W               |    25449 | 36615        | 2.0          | RUDDICK    | Misti       |                 |          |                |
| JAY4       | 624736           | 21.0  | 18354 dodd court     | 815.0          | OR                   | Oshkosh                  | M               |   166567 | t6a 1i3      | 0.0          | JAYAMANNE  | sarena      | M               | f        | Apt. 619       |
| tod5       |      3.06462e+06 | 77.0  | 14117 roxboro street | 333.0          | VA                   |                          | M               |    43631 | A2b 1v3      | 1.0          | todo       | Paulette    | Z               | M        |                |
| Kan6       |      3.48913e+06 | 23.0  | 24697 FLORENCE WEST  | 528.0          | OH                   | VeraSun Energy           |                 |   466230 | 49513        | 4.0          | Kanno      | AMALITA     | R               | m        |                |
| Din7       |      3.43074e+06 | 9.0   | 6488 applewood drive | 680.0          | Prince Edward Island | IDT                      | M               |   420243 | M5d 1v6      | 2.0          | Dinkel     | Ernesto     | Z               |          |                |
| Thi8       |      1.74361e+06 | 63.0  | 17404 gale court     | 761.0          | NV                   | Adams Resources & Energy | U               |   141862 | V6c 1q1      | 3.0          | Thibodeaux | Toby        |                 |          |                |
| May9       | 216299           | 32.0  | 15913 alexis street  | 416.0          | Ontario              | MGIC Investment          | M               |   402011 | 99716        | 0.0          | Mayo       | evangelia   |                 |          |                |

TableB:
| prospect_gncd   |   prospect_ntwrth |   prospect_g | prospect_ddrssln1                                                           |   prospect_crdtrtng | prospect_stt   | prospect_mplr                  | prospect_mrtlstts   |   prospect_ncm | prospect_pstlcd   |   prospect_nmbrcrs | prospect_ct   | prospect_cntr            | prospect_phn   | prospect_nmbrchldrn   | prospect_wnrrntflg   | prospect_nmbrcrdtcrds   |
|:----------------|------------------:|-------------:|:----------------------------------------------------------------------------|--------------------:|:---------------|:-------------------------------|:--------------------|---------------:|:------------------|-------------------:|:--------------|:-------------------------|:---------------|:----------------------|:---------------------|:------------------------|
| Iok7501         |  321776           |            7 | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |                 580 | MO             | FM Global                      | U                   |          94490 | Guudshirvcu       |                  3 | Baltimore     | United States of America | 1-637-119-9996 |                       | U                    |                         |
| tia7502         |       2.29232e+06 |           48 | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     |                 683 | TX             | MGIC Investment                | S                   |           7037 | wyggjewbe         |                  4 | Kitchener     | Canada                   | 1-560-405-0048 | 4.0                   | R                    | 2.0                     |
| AOI7503         |  969707           |           14 | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy |                 411 | CT             | Ross Stores                    | M                   |         419269 | YMZRQICUTHT       |                  1 | Saint John    |                          | 1-261-306-5079 | 5.0                   | O                    | 2.0                     |
| PJQ7504         |       3.89946e+06 |           29 | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   |                 818 | UT             |                                | W                   |          76681 | Bcjuycmcen        |                  4 | Berkeley      | United States of America | 1-642-299-6655 | 5.0                   | U                    | 9.0                     |
| SDV7505         |       3.74922e+06 |           69 | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      |                 370 | RI             | Alliance One International     | U                   |         209116 | Nujxguyehf        |                  2 | Missoula      | United States of America |                | 4.0                   | R                    | 7.0                     |
| Hga7506         |       3.65853e+06 |           47 | Ajpkrmtlcbdzr                                                               |                 833 | DE             | Sally Beauty Holdings          | U                   |         212203 | Neigswk           |                  0 | Salinas       |                          | 1-388-257-4273 | 0.0                   | O                    | 6.0                     |
| Beo7507         |       1.73846e+06 |            0 | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            |                 536 | NM             | Wisconsin Energy               | M                   |          42018 | WNCEOQPLW         |                  5 | San Jose      | Canada                   |                | 5.0                   | U                    | 2.0                     |
| Qum7508         |       3.3073e+06  |           46 | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    |                 775 | WV             | Carpenter Technology           | S                   |          90446 | Cskdwtkf          |                  0 | Cleveland     | United States of America | 1-632-118-1891 | 0.0                   | R                    | 0.0                     |
| Hud7509         |       1.81642e+06 |            6 | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   |                 765 | NH             | Liberty Mutual Insurance Group | M                   |          16274 | tcxswloetdt       |                  1 | Huntington    | United States of America | 1-853-806-4986 | 1.0                   | R                    | 3.0                     |
| jba7510         |       2.59925e+06 |           22 | Ycltsquohmuugxihqyluhkoy                                                    |                 555 | WY             | Black & Decker                 | M                   |          22215 | Fkpemasoukih      |                  5 | Paterson      | Canada                   | 1-220-687-2027 | 2.0                   | O                    | 6.0                     |



source_headers: AgencyID
NetWorth
Age
AddressLine1
CreditRating
State
Employer
MaritalStatus
Income
PostalCode
NumberCars
target_headers: prospect_gncd
prospect_ntwrth
prospect_g
prospect_ddrssln1
prospect_crdtrtng
prospect_stt
prospect_mplr
prospect_mrtlstts
prospect_ncm
prospect_pstlcd
prospect_nmbrcrs
column_mappings: AgencyID
prospect_gncd
NetWorth
prospect_ntwrth
Age
prospect_g
AddressLine1
prospect_ddrssln1
CreditRating
prospect_crdtrtng
State
prospect_stt
Employer
prospect_mplr
MaritalStatus
prospect_mrtlstts
Income
prospect_ncm
PostalCode
prospect_pstlcd
NumberCars
prospect_nmbrcrs
output: {"column_mappings": [["AgencyID", "prospect_gncd"], ["NetWorth", "prospect_ntwrth"], ["Age", "prospect_g"], ["AddressLine1", "prospect_ddrssln1"], ["CreditRating", "prospect_crdtrtng"], ["State", "prospect_stt"], ["Employer", "prospect_mplr"], ["MaritalStatus", "prospect_mrtlstts"], ["Income", "prospect_ncm"], ["PostalCode", "prospect_pstlcd"], ["NumberCars", "prospect_nmbrcrs"], ["LastName", null], ["FirstName", null], ["MiddleInitial", null], ["Gender", null], ["AddressLine2", null]]}