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   | NumberCars   | MiddleInitial   | MaritalStatus   | AddressLine1       | Gender   | CreditRating   |   Income | Country               | Age   | PostalCode   | NumberCreditCards   | AddressLine2   | State              | NumberChildren   | LastName   | FirstName   | City           |
|:-----------|:-------------|:----------------|:----------------|:-------------------|:---------|:---------------|---------:|:----------------------|:------|:-------------|:--------------------|:---------------|:-------------------|:-----------------|:-----------|:------------|:---------------|
| PEL0       |              |                 | W               | 21i47olympjastrert | f        | 449.0          |   260165 | UniheddtatesofAm44ica | 64.0  | T6b1iq       |                     |                | MA                 | 3.0              | PELLAND    | Netti       | Fairbanks      |
| LED1       | 4.0          |                 | U               | 244cohgtesscourt   | F        | 530.0          |   180657 | UnitedStarsspfsmerica | 11.0  | 77281        | 1.0                 | APT625         | PA                 | 4.0              | LEDUC      | TRUDY       | Quebec         |
| lat2       | 5.0          |                 | S               | 6518frwilinfwest   |          | 143.0          |   126126 | UnitfdStat4sofAmeeuca |       | 91355        | 7.0                 |                | Algerta            | 6.0              | latif      | ireland     | Henderson      |
| RUD3       | 5.0          |                 | W               | 1w449vlalockpsrk   |          |                |    91051 | sanada                | 79.0  | 36615        | 5.0                 |                | AR                 | 7.0              | RUDDICK    | Misti       | Salem          |
| JAY4       | 1.0          | M               | M               | 183r5doddcourt     | f        | 602.0          |    95432 | Camada                | 1.0   | t6a2i3       | 4.0                 | qpt619         | OR                 | 2.0              | JAYAMANNE  | sarena      | Toledo         |
| tod5       | 3.0          | Z               | M               | 15117eoxboroxtreet | M        | 535.0          |   182318 | UnitedS6atecofzmericx | 58.0  | A2b1vr       | 2.0                 |                | VA                 | 2.0              | todo       | Paulette    | Corpus Christi |
| Kan6       | 3.0          | R               |                 | 24697rLOREhCEWES6  | m        | 840.0          |   379001 | vanada                | 10.0  | 49513        | 10.0                |                | OH                 | 1.0              | Kanno      | AMALITA     | Salt Lake City |
| Din7       | 4.0          | Z               | M               | 6488appkewoodd47ve |          | 787.0          |   149899 | UnitedS6ar3sofxmerica | 14.0  | M5e1v6       | 9.0                 |                | PrimceEdwardIsoane | 4.0              | Dinkel     | Ernesto     | Brownsville    |
| Thi8       | 5.0          |                 | U               | 17t04galec8urt     |          | 447.0          |   191247 | UnigefStahesofAjerica | 60.0  | Vuc1q1       | 5.0                 |                | NV                 |                  | Thibodeaux | Toby        | Escondido      |
| May9       | 5.0          |                 | M               | 15913akexisxtfeet  |          | 450.0          |   164874 | Unir4dStat2sofAmerlca | 78.0  | 99716        |                     |                | Omtario            | 1.0              | Mayo       | evangelia   | Los Angeles    |

TableB:
| prospect_AgencyID   |   prospect_NumberCars | prospect_MiddleInitial   | prospect_MaritalStatus   | prospect_AddressLine1                                                       | prospect_Gender   |   prospect_CreditRating |   prospect_Income | prospect_Country         |   prospect_Age | prospect_PostalCode   | prospect_NumberCreditCards   | prospect_AddressLine2                                             | prospect_State   | prospect_NumberChildren   | prospect_Phone   | prospect_OwnOrRentFlag   | prospect_Employer              |   prospect_NetWorth |
|:--------------------|----------------------:|:-------------------------|:-------------------------|:----------------------------------------------------------------------------|:------------------|------------------------:|------------------:|:-------------------------|---------------:|:----------------------|:-----------------------------|:------------------------------------------------------------------|:-----------------|:--------------------------|:-----------------|:-------------------------|:-------------------------------|--------------------:|
| Iok7501             |                     3 | n                        | U                        | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |                   |                     580 |             94490 | United States of America |              7 | Guudshirvcu           |                              | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           | MO               |                           | 1-637-119-9996   | U                        | FM Global                      |    321776           |
| tia7502             |                     4 |                          | S                        | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | M                 |                     683 |              7037 | Canada                   |             48 | wyggjewbe             | 2.0                          | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn | TX               | 4.0                       | 1-560-405-0048   | R                        | MGIC Investment                |         2.29232e+06 |
| AOI7503             |                     1 | u                        | M                        | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy |                   |                     411 |            419269 |                          |             14 | YMZRQICUTHT           | 2.0                          | Cdrxeolwrrxmwmhgexvcstvzz                                         | CT               | 5.0                       | 1-261-306-5079   | O                        | Ross Stores                    |    969707           |
| PJQ7504             |                     4 |                          | W                        | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | m                 |                     818 |             76681 | United States of America |             29 | Bcjuycmcen            | 9.0                          | WKSBVOFGJHQGAEKUYRZHHPH                                           | UT               | 5.0                       | 1-642-299-6655   | U                        |                                |         3.89946e+06 |
| SDV7505             |                     2 |                          | U                        | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      |                   |                     370 |            209116 | United States of America |             69 | Nujxguyehf            | 7.0                          | skxijfqpzshmts                                                    | RI               | 4.0                       |                  | R                        | Alliance One International     |         3.74922e+06 |
| Hga7506             |                     0 | F                        | U                        | Ajpkrmtlcbdzr                                                               | F                 |                     833 |            212203 |                          |             47 | Neigswk               | 6.0                          | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       | DE               | 0.0                       | 1-388-257-4273   | O                        | Sally Beauty Holdings          |         3.65853e+06 |
| Beo7507             |                     5 | D                        | M                        | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | M                 |                     536 |             42018 | Canada                   |              0 | WNCEOQPLW             | 2.0                          | LJXAXKUJXQBGWBHJJAAM                                              | NM               | 5.0                       |                  | U                        | Wisconsin Energy               |         1.73846e+06 |
| Qum7508             |                     0 |                          | S                        | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    |                   |                     775 |             90446 | United States of America |             46 | Cskdwtkf              | 0.0                          | Jmlgjkjbqhrudrkqrm                                                | WV               | 0.0                       | 1-632-118-1891   | R                        | Carpenter Technology           |         3.3073e+06  |
| Hud7509             |                     1 | v                        | M                        | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   |                   |                     765 |             16274 | United States of America |              6 | tcxswloetdt           | 3.0                          | Qqcilgblxyikgr                                                    | NH               | 1.0                       | 1-853-806-4986   | R                        | Liberty Mutual Insurance Group |         1.81642e+06 |
| jba7510             |                     5 |                          | M                        | Ycltsquohmuugxihqyluhkoy                                                    | m                 |                     555 |             22215 | Canada                   |             22 | Fkpemasoukih          | 6.0                          | Ahtohqjfzfarn                                                     | WY               | 2.0                       | 1-220-687-2027   | O                        | Black & Decker                 |         2.59925e+06 |



source_headers: AgencyID
NumberCars
MiddleInitial
MaritalStatus
AddressLine1
Gender
CreditRating
Income
Country
Age
PostalCode
NumberCreditCards
AddressLine2
State
NumberChildren
target_headers: prospect_AgencyID
prospect_NumberCars
prospect_MiddleInitial
prospect_MaritalStatus
prospect_AddressLine1
prospect_Gender
prospect_CreditRating
prospect_Income
prospect_Country
prospect_Age
prospect_PostalCode
prospect_NumberCreditCards
prospect_AddressLine2
prospect_State
prospect_NumberChildren
column_mappings: AgencyID
prospect_AgencyID
NumberCars
prospect_NumberCars
MiddleInitial
prospect_MiddleInitial
MaritalStatus
prospect_MaritalStatus
AddressLine1
prospect_AddressLine1
Gender
prospect_Gender
CreditRating
prospect_CreditRating
Income
prospect_Income
Country
prospect_Country
Age
prospect_Age
PostalCode
prospect_PostalCode
NumberCreditCards
prospect_NumberCreditCards
AddressLine2
prospect_AddressLine2
State
prospect_State
NumberChildren
prospect_NumberChildren
output: {"column_mappings": [["AgencyID", "prospect_AgencyID"], ["NumberCars", "prospect_NumberCars"], ["MiddleInitial", "prospect_MiddleInitial"], ["MaritalStatus", "prospect_MaritalStatus"], ["AddressLine1", "prospect_AddressLine1"], ["Gender", "prospect_Gender"], ["CreditRating", "prospect_CreditRating"], ["Income", "prospect_Income"], ["Country", "prospect_Country"], ["Age", "prospect_Age"], ["PostalCode", "prospect_PostalCode"], ["NumberCreditCards", "prospect_NumberCreditCards"], ["AddressLine2", "prospect_AddressLine2"], ["State", "prospect_State"], ["NumberChildren", "prospect_NumberChildren"], ["LastName", null], ["FirstName", null], ["City", null]]}