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   | Gender   | MaritalStatus   | State                | Country                  | Age   |         NetWorth | FirstName   |   Income | AddressLine1         | City           | CreditRating   | Employer                 | PostalCode   | AddressLine2   | LastName   | MiddleInitial   | Phone          |
|:-----------|:---------|:----------------|:---------------------|:-------------------------|:------|-----------------:|:------------|---------:|:---------------------|:---------------|:---------------|:-------------------------|:-------------|:---------------|:-----------|:----------------|:---------------|
| PEL0       | f        | W               | MA                   | United States of America | 20.0  |      1.05887e+06 | Netti       |   368776 | 21847 olympia street | Fairbanks      | 760.0          | Brink's                  | T6b 1i1      |                | PELLAND    |                 | 1-712-522-6088 |
| LED1       | F        | U               | PA                   | United States of America | 3.0   |      1.98818e+06 | TRUDY       |   177967 | 245 congress court   | Quebec         | 555.0          |                          | 77281        | APT. 624       | LEDUC      |                 | 1-626-426-4298 |
| lat2       |          | S               | Alberta              | United States of America |       |      3.67313e+06 | ireland     |   321772 | 6517 frailing west   | Henderson      | 566.0          |                          | 91355        |                | latif      |                 | 1-524-787-8784 |
| RUD3       |          | W               | AR                   | Canada                   | 77.0  |      2.0059e+06  | Misti       |    25449 | 11449 blalock park   | Salem          |                | Air Products & Chemicals | 36615        |                | RUDDICK    |                 | 1-741-997-1688 |
| JAY4       | f        | M               | OR                   | Canada                   | 21.0  | 624736           | sarena      |   166567 | 18354 dodd court     | Toledo         | 815.0          | Oshkosh                  | t6a 1i3      | Apt. 619       | JAYAMANNE  | M               | 1-002-194-1991 |
| tod5       | M        | M               | VA                   | United States of America | 77.0  |      3.06462e+06 | Paulette    |    43631 | 14117 roxboro street | Corpus Christi | 333.0          |                          | A2b 1v3      |                | todo       | Z               | 1-441-371-7651 |
| Kan6       | m        |                 | OH                   | Canada                   | 23.0  |      3.48913e+06 | AMALITA     |   466230 | 24697 FLORENCE WEST  | Salt Lake City | 528.0          | VeraSun Energy           | 49513        |                | Kanno      | R               | 1-957-940-5980 |
| Din7       |          | M               | Prince Edward Island | United States of America | 9.0   |      3.43074e+06 | Ernesto     |   420243 | 6488 applewood drive | Brownsville    | 680.0          | IDT                      | M5d 1v6      |                | Dinkel     | Z               | 1-768-633-4096 |
| Thi8       |          | U               | NV                   | United States of America | 63.0  |      1.74361e+06 | Toby        |   141862 | 17404 gale court     | Escondido      | 761.0          | Adams Resources & Energy | V6c 1q1      |                | Thibodeaux |                 | 1-107-689-2155 |
| May9       |          | M               | Ontario              | United States of America | 32.0  | 216299           | evangelia   |   402011 | 15913 alexis street  | Los Angeles    | 416.0          | MGIC Investment          | 99716        |                | Mayo       |                 | 1-173-594-6096 |

TableB:
| prospect_AgencyID   | prospect_Gender   | prospect_MaritalStatus   | prospect_State   | prospect_Country         |   prospect_Age |   prospect_NetWorth | prospect_FirstName          |   prospect_Income | prospect_AddressLine1                                                       | prospect_City   |   prospect_CreditRating | prospect_Employer              | prospect_PostalCode   | prospect_AddressLine2                                             |   prospect_NumberCars | prospect_NumberChildren   | prospect_OwnOrRentFlag   | prospect_NumberCreditCards   |
|:--------------------|:------------------|:-------------------------|:-----------------|:-------------------------|---------------:|--------------------:|:----------------------------|------------------:|:----------------------------------------------------------------------------|:----------------|------------------------:|:-------------------------------|:----------------------|:------------------------------------------------------------------|----------------------:|:--------------------------|:-------------------------|:-----------------------------|
| Iok7501             |                   | U                        | MO               | United States of America |              7 |    321776           | wbwsqgtaa                   |             94490 | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                | Baltimore       |                     580 | FM Global                      | Guudshirvcu           | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           |                     3 |                           | U                        |                              |
| tia7502             | M                 | S                        | TX               | Canada                   |             48 |         2.29232e+06 | QGJWCPAPZMWHYHZTNOYSSOQBI   |              7037 | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | Kitchener       |                     683 | MGIC Investment                | wyggjewbe             | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn |                     4 | 4.0                       | R                        | 2.0                          |
| AOI7503             |                   | M                        | CT               |                          |             14 |    969707           | BHGXDDPUMBESLQMNEPREPTZNNKM |            419269 | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | Saint John      |                     411 | Ross Stores                    | YMZRQICUTHT           | Cdrxeolwrrxmwmhgexvcstvzz                                         |                     1 | 5.0                       | O                        | 2.0                          |
| PJQ7504             | m                 | W                        | UT               | United States of America |             29 |         3.89946e+06 | Xgnvppcxgfnmawlupgfa        |             76681 | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | Berkeley        |                     818 |                                | Bcjuycmcen            | WKSBVOFGJHQGAEKUYRZHHPH                                           |                     4 | 5.0                       | U                        | 9.0                          |
| SDV7505             |                   | U                        | RI               | United States of America |             69 |         3.74922e+06 | Tfiozpstcftslqtwkgngiiwo    |            209116 | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | Missoula        |                     370 | Alliance One International     | Nujxguyehf            | skxijfqpzshmts                                                    |                     2 | 4.0                       | R                        | 7.0                          |
| Hga7506             | F                 | U                        | DE               |                          |             47 |         3.65853e+06 | fbcahlrhhjoslfzqvvwwvhk     |            212203 | Ajpkrmtlcbdzr                                                               | Salinas         |                     833 | Sally Beauty Holdings          | Neigswk               | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       |                     0 | 0.0                       | O                        | 6.0                          |
| Beo7507             | M                 | M                        | NM               | Canada                   |              0 |         1.73846e+06 | Dcgkohfcwyoaxckalqnkrzwq    |             42018 | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | San Jose        |                     536 | Wisconsin Energy               | WNCEOQPLW             | LJXAXKUJXQBGWBHJJAAM                                              |                     5 | 5.0                       | U                        | 2.0                          |
| Qum7508             |                   | S                        | WV               | United States of America |             46 |         3.3073e+06  | Vmnmcsinflxxmmifydckncc     |             90446 | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | Cleveland       |                     775 | Carpenter Technology           | Cskdwtkf              | Jmlgjkjbqhrudrkqrm                                                |                     0 | 0.0                       | R                        | 0.0                          |
| Hud7509             |                   | M                        | NH               | United States of America |              6 |         1.81642e+06 | Vrkbkkxkddtximspigmlbwzt    |             16274 | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | Huntington      |                     765 | Liberty Mutual Insurance Group | tcxswloetdt           | Qqcilgblxyikgr                                                    |                     1 | 1.0                       | R                        | 3.0                          |
| jba7510             | m                 | M                        | WY               | Canada                   |             22 |         2.59925e+06 | RMWCTFTLSVTMCBI             |             22215 | Ycltsquohmuugxihqyluhkoy                                                    | Paterson        |                     555 | Black & Decker                 | Fkpemasoukih          | Ahtohqjfzfarn                                                     |                     5 | 2.0                       | O                        | 6.0                          |



source_headers: AgencyID
Gender
MaritalStatus
State
Country
Age
NetWorth
FirstName
Income
AddressLine1
City
CreditRating
Employer
PostalCode
AddressLine2
target_headers: prospect_AgencyID
prospect_Gender
prospect_MaritalStatus
prospect_State
prospect_Country
prospect_Age
prospect_NetWorth
prospect_FirstName
prospect_Income
prospect_AddressLine1
prospect_City
prospect_CreditRating
prospect_Employer
prospect_PostalCode
prospect_AddressLine2
column_mappings: AgencyID
prospect_AgencyID
Gender
prospect_Gender
MaritalStatus
prospect_MaritalStatus
State
prospect_State
Country
prospect_Country
Age
prospect_Age
NetWorth
prospect_NetWorth
FirstName
prospect_FirstName
Income
prospect_Income
AddressLine1
prospect_AddressLine1
City
prospect_City
CreditRating
prospect_CreditRating
Employer
prospect_Employer
PostalCode
prospect_PostalCode
AddressLine2
prospect_AddressLine2
output: {"column_mappings": [["AgencyID", "prospect_AgencyID"], ["Gender", "prospect_Gender"], ["MaritalStatus", "prospect_MaritalStatus"], ["State", "prospect_State"], ["Country", "prospect_Country"], ["Age", "prospect_Age"], ["NetWorth", "prospect_NetWorth"], ["FirstName", "prospect_FirstName"], ["Income", "prospect_Income"], ["AddressLine1", "prospect_AddressLine1"], ["City", "prospect_City"], ["CreditRating", "prospect_CreditRating"], ["Employer", "prospect_Employer"], ["PostalCode", "prospect_PostalCode"], ["AddressLine2", "prospect_AddressLine2"], ["LastName", null], ["MiddleInitial", null], ["Phone", null]]}