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   | MaritalStatus   | CreditRating   | Country               |   Income | State              | OwnOrRentFlag   | FirstName   | LastName   | MiddleInitial   | Phone          | NumberChildren   | Age   | City          | AddressLine1       | Gender   | AddressLine2   | PostalCode   |
|:-----------|:----------------|:---------------|:----------------------|---------:|:-------------------|:----------------|:------------|:-----------|:----------------|:---------------|:-----------------|:------|:--------------|:-------------------|:---------|:---------------|:-------------|
| PEL0       | W               | 866.0          | UnigewStatss9fAmerica |    40894 | MA                 | O               | Nettu       | 9ELLAND    |                 | 1 712 522 6088 | 2.0              | 61.0  | Fa7rbanks     | 218r7olympiastre25 | f        |                | T6b 1i1      |
| LED1       | U               | 705.0          | 7nitedStates0bAmerlca |   149265 | PA                 | U               | TR8DY       | LEDUf      |                 | 1 626 426 4298 | 4.0              | 11.0  | Quevec        | 245congfeqsdourt   | F        | APT. 624       | 77281        |
| lat2       | S               | 733.0          | UnitedS4ahesofAmeduca |   118691 | Albe3ta            | O               | ireoand     | latig      |                 | 1 524 787 8784 | 1.0              |       | Hwnderson     | t517frailijgwewt   |          |                | 91355        |
| RUD3       | W               |                | Cabada                |   196307 | AR                 | O               | Mis6i       | RUDD8CK    |                 | 1 741 997 1688 | 0.0              | 60.0  | Salwm         | 11e49voalockpark   |          |                | 36615        |
| JAY4       | M               | 1026.0         | danada                |   244028 | OR                 | O               | sarega      | yAYAMANNE  | M               | 1 002 194 1991 | 4.0              | 55.0  | T9ledo        | 18w54dkddcourt     | f        | Apt. 619       | t6a 1i3      |
| tod5       | M               | 880.0          | UnitedStages0fxkerica |   218135 | VA                 | R               | Psulette    | todo       | Z               | 1 441 371 7651 | 2.0              | 49.0  | Corpusdhriati | q4117roaborpstreet | M        |                | A2b 1v3      |
| Kan6       |                 | 677.0          | Canadz                |   253539 | OH                 | O               | AnALITA     | Kann8      | R               | 1 957 940 5980 | 2.0              | 53.0  | SsltLakeC9ty  | 24697vLOR4NCEWES4  | m        |                | 49513        |
| Din7       | M               | 409.0          | UnitesSfa6esofAkerica |   193099 | 0fincesdwardIsland | U               | Ernest9     | Dinkep     | Z               | 1 768 633 4096 | 0.0              | 82.0  | Brownsfklle   | 6488apllewo9ddeive |          |                | M5d 1v6      |
| Thi8       | U               | 739.0          | UnifedStqtesofAm3gica |   246028 | NV                 | O               | Toby        | fhinodeaux |                 | 1 107 689 2155 |                  | 42.0  | Esconsido     | 16404galecohrt     |          |                | V6c 1q1      |
| May9       | M               | 998.0          | UnitedStatesofqhegics |   346543 | Ontar8o            | O               | svangelia   | Mayo       |                 | 1 173 594 6096 | 3.0              | 71.0  | Loswbgeles    | 15913ai2aisstreet  |          |                | 99716        |

TableB:
| prospect_AgID   | prospect_MaSt   |   prospect_CreRa | prospect_Co              |   prospect_In | prospect_St   | prospect_OORFl   | prospect_FiNa               | prospect_LaNa                 | prospect_MidIn   | prospect_Pho   | prospect_NuChil   |   prospect_Ag | prospect_Ci   | prospect_AddLi1                                                             |   prospect_NuC | prospect_Em                    | prospect_NuCreCar   |   prospect_NeWor |
|:----------------|:----------------|-----------------:|:-------------------------|--------------:|:--------------|:-----------------|:----------------------------|:------------------------------|:-----------------|:---------------|:------------------|--------------:|:--------------|:----------------------------------------------------------------------------|---------------:|:-------------------------------|:--------------------|-----------------:|
| Iok7501         | U               |              580 | United States of America |         94490 | MO            | U                | wbwsqgtaa                   | Iokwiqojocjanndatkdzgymym     | n                | 1-637-119-9996 |                   |             7 | Baltimore     | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                |              3 | FM Global                      |                     | 321776           |
| tia7502         | S               |              683 | Canada                   |          7037 | TX            | R                | QGJWCPAPZMWHYHZTNOYSSOQBI   | tiabxgseasiibxakctfzhfwotp    |                  | 1-560-405-0048 | 4.0               |            48 | Kitchener     | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     |              4 | MGIC Investment                | 2.0                 |      2.29232e+06 |
| AOI7503         | M               |              411 |                          |        419269 | CT            | O                | BHGXDDPUMBESLQMNEPREPTZNNKM | AOIWIWTIHIXOJ                 | u                | 1-261-306-5079 | 5.0               |            14 | Saint John    | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy |              1 | Ross Stores                    | 2.0                 | 969707           |
| PJQ7504         | W               |              818 | United States of America |         76681 | UT            | U                | Xgnvppcxgfnmawlupgfa        | PJQSPMBUHYQKBOZ               |                  | 1-642-299-6655 | 5.0               |            29 | Berkeley      | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   |              4 |                                | 9.0                 |      3.89946e+06 |
| SDV7505         | U               |              370 | United States of America |        209116 | RI            | R                | Tfiozpstcftslqtwkgngiiwo    | SDVLJWXENNGWCQMIW             |                  |                | 4.0               |            69 | Missoula      | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      |              2 | Alliance One International     | 7.0                 |      3.74922e+06 |
| Hga7506         | U               |              833 |                          |        212203 | DE            | O                | fbcahlrhhjoslfzqvvwwvhk     | Hgakmykzeunwkiaxayulpwyxrcuev | F                | 1-388-257-4273 | 0.0               |            47 | Salinas       | Ajpkrmtlcbdzr                                                               |              0 | Sally Beauty Holdings          | 6.0                 |      3.65853e+06 |
| Beo7507         | M               |              536 | Canada                   |         42018 | NM            | U                | Dcgkohfcwyoaxckalqnkrzwq    | Beotomyndkiqryllkvpavllytov   | D                |                | 5.0               |             0 | San Jose      | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            |              5 | Wisconsin Energy               | 2.0                 |      1.73846e+06 |
| Qum7508         | S               |              775 | United States of America |         90446 | WV            | R                | Vmnmcsinflxxmmifydckncc     | Qumxrssnd                     |                  | 1-632-118-1891 | 0.0               |            46 | Cleveland     | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    |              0 | Carpenter Technology           | 0.0                 |      3.3073e+06  |
| Hud7509         | M               |              765 | United States of America |         16274 | NH            | R                | Vrkbkkxkddtximspigmlbwzt    | Hudlpfwjagzbnznyhamjkhbf      | v                | 1-853-806-4986 | 1.0               |             6 | Huntington    | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   |              1 | Liberty Mutual Insurance Group | 3.0                 |      1.81642e+06 |
| jba7510         | M               |              555 | Canada                   |         22215 | WY            | O                | RMWCTFTLSVTMCBI             | jbabemsfwdyeihxq              |                  | 1-220-687-2027 | 2.0               |            22 | Paterson      | Ycltsquohmuugxihqyluhkoy                                                    |              5 | Black & Decker                 | 6.0                 |      2.59925e+06 |



source_headers: AgencyID
MaritalStatus
CreditRating
Country
Income
State
OwnOrRentFlag
FirstName
LastName
MiddleInitial
Phone
NumberChildren
Age
City
AddressLine1
target_headers: prospect_AgID
prospect_MaSt
prospect_CreRa
prospect_Co
prospect_In
prospect_St
prospect_OORFl
prospect_FiNa
prospect_LaNa
prospect_MidIn
prospect_Pho
prospect_NuChil
prospect_Ag
prospect_Ci
prospect_AddLi1
column_mappings: AgencyID
prospect_AgID
MaritalStatus
prospect_MaSt
CreditRating
prospect_CreRa
Country
prospect_Co
Income
prospect_In
State
prospect_St
OwnOrRentFlag
prospect_OORFl
FirstName
prospect_FiNa
LastName
prospect_LaNa
MiddleInitial
prospect_MidIn
Phone
prospect_Pho
NumberChildren
prospect_NuChil
Age
prospect_Ag
City
prospect_Ci
AddressLine1
prospect_AddLi1
output: {"column_mappings": [["AgencyID", "prospect_AgID"], ["MaritalStatus", "prospect_MaSt"], ["CreditRating", "prospect_CreRa"], ["Country", "prospect_Co"], ["Income", "prospect_In"], ["State", "prospect_St"], ["OwnOrRentFlag", "prospect_OORFl"], ["FirstName", "prospect_FiNa"], ["LastName", "prospect_LaNa"], ["MiddleInitial", "prospect_MidIn"], ["Phone", "prospect_Pho"], ["NumberChildren", "prospect_NuChil"], ["Age", "prospect_Ag"], ["City", "prospect_Ci"], ["AddressLine1", "prospect_AddLi1"], ["Gender", null], ["AddressLine2", null], ["PostalCode", null]]}