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   | LastName   | State              | Phone          | Country               | OwnOrRentFlag   | FirstName   | PostalCode   | AddressLine1       | NumberChildren   | AddressLine2   | MiddleInitial   | Gender   | City           |   Income | NumberCars   |
|:-----------|:-----------|:-------------------|:---------------|:----------------------|:----------------|:------------|:-------------|:-------------------|:-----------------|:---------------|:----------------|:---------|:---------------|---------:|:-------------|
| PEL0       | lELLAND    | MA                 | 1 712 522 6088 | knotedStatesobAmericq | O               | Nettk       | 66b1i1       | 21847opymplasteeet | 2.0              |                |                 | f        | Fairbanks      |   368776 |              |
| LED1       | LEDUs      | PA                 | 1 626 426 4298 | Uniredqtatesoexmerica | U               | 6RUDY       | 77281        | 245comvr2sscourt   | 3.0              | sPT624         |                 | F        | Quebec         |   177967 | 5.0          |
| lat2       | patif      | Apberta            | 1 524 787 8784 | Ugitedatz4esofAmerica | O               | iteland     | 91355        | 6527fra7linrwest   | 1.0              |                |                 |          | Henderson      |   321772 | 2.0          |
| RUD3       | RUDeICK    | AR                 | 1 741 997 1688 | Canafa                | O               | Mksti       | 36615        | 1q449blaloskpzrk   | 2.0              |                |                 |          | Salem          |    25449 | 2.0          |
| JAY4       | yAYAMANNE  | OR                 | 1 002 194 1991 | Cansda                | O               | sxrena      | tua1i3       | w8354d8ddcourt     | 3.0              | Apt61i         | M               | f        | Toledo         |   166567 | 0.0          |
| tod5       | todo       | VA                 | 1 441 371 7651 | UjitedStatewofzmerisa | R               | Paulet6e    | A2b1v4       | q41q7roxbofostreet | 1.0              |                | Z               | M        | Corpus Christi |    43631 | 1.0          |
| Kan6       | Kango      | OH                 | 1 957 940 5980 | Canaea                | O               | AMApITA     | 49513        | 2t697FLORdNCEqEST  | 5.0              |                | R               | m        | Salt Lake City |   466230 | 4.0          |
| Din7       | Dinkwl     | Pr9nseEdaardIsland | 1 768 633 4096 | Unit4dStatezocsmerica | U               | Ernezto     | M5dwv6       | 648oappi3wooddrive | 4.0              |                | Z               |          | Brownsville    |   420243 | 2.0          |
| Thi8       | Thigoseaux | NV                 | 1 107 689 2155 | Uni6ewS4atesofAnerica | O               | Toby        | V6s1q1       | 17404halfcourt     |                  |                |                 |          | Escondido      |   141862 | 3.0          |
| May9       | Mayo       | Obtario            | 1 173 594 6096 | UnitedStwtesofAjer8va | O               | evaggelia   | 99716        | 158wealexisstreet  | 1.0              |                |                 |          | Los Angeles    |   402011 | 0.0          |

TableB:
| prospect_AgencyID   | prospect_LastName             | prospect_State   | prospect_Phone   | prospect_Country         | prospect_OwnOrRentFlag   | prospect_FirstName          | prospect_PostalCode   | prospect_AddressLine1                                                       | prospect_NumberChildren   | prospect_AddressLine2                                             | prospect_MaritalStatus   |   prospect_Age |   prospect_CreditRating | prospect_Employer              | prospect_NumberCreditCards   |   prospect_NetWorth |
|:--------------------|:------------------------------|:-----------------|:-----------------|:-------------------------|:-------------------------|:----------------------------|:----------------------|:----------------------------------------------------------------------------|:--------------------------|:------------------------------------------------------------------|:-------------------------|---------------:|------------------------:|:-------------------------------|:-----------------------------|--------------------:|
| Iok7501             | Iokwiqojocjanndatkdzgymym     | MO               | 1-637-119-9996   | United States of America | U                        | wbwsqgtaa                   | Guudshirvcu           | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |                           | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           | U                        |              7 |                     580 | FM Global                      |                              |    321776           |
| tia7502             | tiabxgseasiibxakctfzhfwotp    | TX               | 1-560-405-0048   | Canada                   | R                        | QGJWCPAPZMWHYHZTNOYSSOQBI   | wyggjewbe             | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | 4.0                       | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn | S                        |             48 |                     683 | MGIC Investment                | 2.0                          |         2.29232e+06 |
| AOI7503             | AOIWIWTIHIXOJ                 | CT               | 1-261-306-5079   |                          | O                        | BHGXDDPUMBESLQMNEPREPTZNNKM | YMZRQICUTHT           | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | 5.0                       | Cdrxeolwrrxmwmhgexvcstvzz                                         | M                        |             14 |                     411 | Ross Stores                    | 2.0                          |    969707           |
| PJQ7504             | PJQSPMBUHYQKBOZ               | UT               | 1-642-299-6655   | United States of America | U                        | Xgnvppcxgfnmawlupgfa        | Bcjuycmcen            | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | 5.0                       | WKSBVOFGJHQGAEKUYRZHHPH                                           | W                        |             29 |                     818 |                                | 9.0                          |         3.89946e+06 |
| SDV7505             | SDVLJWXENNGWCQMIW             | RI               |                  | United States of America | R                        | Tfiozpstcftslqtwkgngiiwo    | Nujxguyehf            | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | 4.0                       | skxijfqpzshmts                                                    | U                        |             69 |                     370 | Alliance One International     | 7.0                          |         3.74922e+06 |
| Hga7506             | Hgakmykzeunwkiaxayulpwyxrcuev | DE               | 1-388-257-4273   |                          | O                        | fbcahlrhhjoslfzqvvwwvhk     | Neigswk               | Ajpkrmtlcbdzr                                                               | 0.0                       | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       | U                        |             47 |                     833 | Sally Beauty Holdings          | 6.0                          |         3.65853e+06 |
| Beo7507             | Beotomyndkiqryllkvpavllytov   | NM               |                  | Canada                   | U                        | Dcgkohfcwyoaxckalqnkrzwq    | WNCEOQPLW             | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | 5.0                       | LJXAXKUJXQBGWBHJJAAM                                              | M                        |              0 |                     536 | Wisconsin Energy               | 2.0                          |         1.73846e+06 |
| Qum7508             | Qumxrssnd                     | WV               | 1-632-118-1891   | United States of America | R                        | Vmnmcsinflxxmmifydckncc     | Cskdwtkf              | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | 0.0                       | Jmlgjkjbqhrudrkqrm                                                | S                        |             46 |                     775 | Carpenter Technology           | 0.0                          |         3.3073e+06  |
| Hud7509             | Hudlpfwjagzbnznyhamjkhbf      | NH               | 1-853-806-4986   | United States of America | R                        | Vrkbkkxkddtximspigmlbwzt    | tcxswloetdt           | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | 1.0                       | Qqcilgblxyikgr                                                    | M                        |              6 |                     765 | Liberty Mutual Insurance Group | 3.0                          |         1.81642e+06 |
| jba7510             | jbabemsfwdyeihxq              | WY               | 1-220-687-2027   | Canada                   | O                        | RMWCTFTLSVTMCBI             | Fkpemasoukih          | Ycltsquohmuugxihqyluhkoy                                                    | 2.0                       | Ahtohqjfzfarn                                                     | M                        |             22 |                     555 | Black & Decker                 | 6.0                          |         2.59925e+06 |



source_headers: AgencyID
LastName
State
Phone
Country
OwnOrRentFlag
FirstName
PostalCode
AddressLine1
NumberChildren
AddressLine2
target_headers: prospect_AgencyID
prospect_LastName
prospect_State
prospect_Phone
prospect_Country
prospect_OwnOrRentFlag
prospect_FirstName
prospect_PostalCode
prospect_AddressLine1
prospect_NumberChildren
prospect_AddressLine2
column_mappings: AgencyID
prospect_AgencyID
LastName
prospect_LastName
State
prospect_State
Phone
prospect_Phone
Country
prospect_Country
OwnOrRentFlag
prospect_OwnOrRentFlag
FirstName
prospect_FirstName
PostalCode
prospect_PostalCode
AddressLine1
prospect_AddressLine1
NumberChildren
prospect_NumberChildren
AddressLine2
prospect_AddressLine2
output: {"column_mappings": [["AgencyID", "prospect_AgencyID"], ["LastName", "prospect_LastName"], ["State", "prospect_State"], ["Phone", "prospect_Phone"], ["Country", "prospect_Country"], ["OwnOrRentFlag", "prospect_OwnOrRentFlag"], ["FirstName", "prospect_FirstName"], ["PostalCode", "prospect_PostalCode"], ["AddressLine1", "prospect_AddressLine1"], ["NumberChildren", "prospect_NumberChildren"], ["AddressLine2", "prospect_AddressLine2"], ["MiddleInitial", null], ["Gender", null], ["City", null], ["Income", null], ["NumberCars", null]]}