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   | FirstName   | MiddleInitial   | Gender   | AddressLine1         | AddressLine2   | PostalCode   | City           | State                | Country                  | Phone          |   Income | NumberCars   | NumberChildren   | MaritalStatus   | Age   | CreditRating   | OwnOrRentFlag   | Employer                 | NumberCreditCards   |         NetWorth |
|:-----------|:-----------|:------------|:----------------|:---------|:---------------------|:---------------|:-------------|:---------------|:---------------------|:-------------------------|:---------------|---------:|:-------------|:-----------------|:----------------|:------|:---------------|:----------------|:-------------------------|:--------------------|-----------------:|
| PEL0       | PELLAND    | Netti       |                 | f        | 21847 olympia street |                | T6b 1i1      | Fairbanks      | MA                   | United States of America | 1-712-522-6088 |   368776 |              | 3.0              | W               | 20.0  | 760.0          | O               | Brink's                  |                     |      1.05887e+06 |
| LED1       | LEDUC      | TRUDY       |                 | F        | 245 congress court   | APT. 624       | 77281        | Quebec         | PA                   | United States of America | 1-626-426-4298 |   177967 | 5.0          | 1.0              | U               | 3.0   | 555.0          | U               |                          | 6.0                 |      1.98818e+06 |
| lat2       | latif      | ireland     |                 |          | 6517 frailing west   |                | 91355        | Henderson      | Alberta              | United States of America | 1-524-787-8784 |   321772 | 2.0          | 1.0              | S               |       | 566.0          | O               |                          | 6.0                 |      3.67313e+06 |
| RUD3       | RUDDICK    | Misti       |                 |          | 11449 blalock park   |                | 36615        | Salem          | AR                   | Canada                   | 1-741-997-1688 |    25449 | 2.0          | 1.0              | W               | 77.0  |                | O               | Air Products & Chemicals | 3.0                 |      2.0059e+06  |
| JAY4       | JAYAMANNE  | sarena      | M               | f        | 18354 dodd court     | Apt. 619       | t6a 1i3      | Toledo         | OR                   | Canada                   | 1-002-194-1991 |   166567 | 0.0          | 3.0              | M               | 21.0  | 815.0          | O               | Oshkosh                  | 4.0                 | 624736           |
| tod5       | todo       | Paulette    | Z               | M        | 14117 roxboro street |                | A2b 1v3      | Corpus Christi | VA                   | United States of America | 1-441-371-7651 |    43631 | 1.0          | 4.0              | M               | 77.0  | 333.0          | R               |                          | 10.0                |      3.06462e+06 |
| Kan6       | Kanno      | AMALITA     | R               | m        | 24697 FLORENCE WEST  |                | 49513        | Salt Lake City | OH                   | Canada                   | 1-957-940-5980 |   466230 | 4.0          | 0.0              |                 | 23.0  | 528.0          | O               | VeraSun Energy           | 1.0                 |      3.48913e+06 |
| Din7       | Dinkel     | Ernesto     | Z               |          | 6488 applewood drive |                | M5d 1v6      | Brownsville    | Prince Edward Island | United States of America | 1-768-633-4096 |   420243 | 2.0          | 2.0              | M               | 9.0   | 680.0          | U               | IDT                      | 7.0                 |      3.43074e+06 |
| Thi8       | Thibodeaux | Toby        |                 |          | 17404 gale court     |                | V6c 1q1      | Escondido      | NV                   | United States of America | 1-107-689-2155 |   141862 | 3.0          |                  | U               | 63.0  | 761.0          | O               | Adams Resources & Energy | 10.0                |      1.74361e+06 |
| May9       | Mayo       | evangelia   |                 |          | 15913 alexis street  |                | 99716        | Los Angeles    | Ontario              | United States of America | 1-173-594-6096 |   402011 | 0.0          | 2.0              | M               | 32.0  | 416.0          | O               | MGIC Investment          |                     | 216299           |

TableB:
| AgID    | LaNa                          | FirN                        | MiIn   | Ge   | AddrLi1                                                                     | AddLi2                                                            | PoCo         | Ci         | St   | Co                       | Pho            |    Inc |   NuCa | NumCh   | MaSta   |   Ag |   CreRa | OORFl   | Em                             | NumCreCa   |              NWo |
|:--------|:------------------------------|:----------------------------|:-------|:-----|:----------------------------------------------------------------------------|:------------------------------------------------------------------|:-------------|:-----------|:-----|:-------------------------|:---------------|-------:|-------:|:--------|:--------|-----:|--------:|:--------|:-------------------------------|:-----------|-----------------:|
| Iok7501 | Iokwiqojocjanndatkdzgymym     | wbwsqgtaa                   | n      |      | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           | Guudshirvcu  | Baltimore  | MO   | United States of America | 1-637-119-9996 |  94490 |      3 |         | U       |    7 |     580 | U       | FM Global                      |            | 321776           |
| tia7502 | tiabxgseasiibxakctfzhfwotp    | QGJWCPAPZMWHYHZTNOYSSOQBI   |        | M    | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn | wyggjewbe    | Kitchener  | TX   | Canada                   | 1-560-405-0048 |   7037 |      4 | 4.0     | S       |   48 |     683 | R       | MGIC Investment                | 2.0        |      2.29232e+06 |
| AOI7503 | AOIWIWTIHIXOJ                 | BHGXDDPUMBESLQMNEPREPTZNNKM | u      |      | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | Cdrxeolwrrxmwmhgexvcstvzz                                         | YMZRQICUTHT  | Saint John | CT   |                          | 1-261-306-5079 | 419269 |      1 | 5.0     | M       |   14 |     411 | O       | Ross Stores                    | 2.0        | 969707           |
| PJQ7504 | PJQSPMBUHYQKBOZ               | Xgnvppcxgfnmawlupgfa        |        | m    | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | WKSBVOFGJHQGAEKUYRZHHPH                                           | Bcjuycmcen   | Berkeley   | UT   | United States of America | 1-642-299-6655 |  76681 |      4 | 5.0     | W       |   29 |     818 | U       |                                | 9.0        |      3.89946e+06 |
| SDV7505 | SDVLJWXENNGWCQMIW             | Tfiozpstcftslqtwkgngiiwo    |        |      | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | skxijfqpzshmts                                                    | Nujxguyehf   | Missoula   | RI   | United States of America |                | 209116 |      2 | 4.0     | U       |   69 |     370 | R       | Alliance One International     | 7.0        |      3.74922e+06 |
| Hga7506 | Hgakmykzeunwkiaxayulpwyxrcuev | fbcahlrhhjoslfzqvvwwvhk     | F      | F    | Ajpkrmtlcbdzr                                                               | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       | Neigswk      | Salinas    | DE   |                          | 1-388-257-4273 | 212203 |      0 | 0.0     | U       |   47 |     833 | O       | Sally Beauty Holdings          | 6.0        |      3.65853e+06 |
| Beo7507 | Beotomyndkiqryllkvpavllytov   | Dcgkohfcwyoaxckalqnkrzwq    | D      | M    | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | LJXAXKUJXQBGWBHJJAAM                                              | WNCEOQPLW    | San Jose   | NM   | Canada                   |                |  42018 |      5 | 5.0     | M       |    0 |     536 | U       | Wisconsin Energy               | 2.0        |      1.73846e+06 |
| Qum7508 | Qumxrssnd                     | Vmnmcsinflxxmmifydckncc     |        |      | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | Jmlgjkjbqhrudrkqrm                                                | Cskdwtkf     | Cleveland  | WV   | United States of America | 1-632-118-1891 |  90446 |      0 | 0.0     | S       |   46 |     775 | R       | Carpenter Technology           | 0.0        |      3.3073e+06  |
| Hud7509 | Hudlpfwjagzbnznyhamjkhbf      | Vrkbkkxkddtximspigmlbwzt    | v      |      | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | Qqcilgblxyikgr                                                    | tcxswloetdt  | Huntington | NH   | United States of America | 1-853-806-4986 |  16274 |      1 | 1.0     | M       |    6 |     765 | R       | Liberty Mutual Insurance Group | 3.0        |      1.81642e+06 |
| jba7510 | jbabemsfwdyeihxq              | RMWCTFTLSVTMCBI             |        | m    | Ycltsquohmuugxihqyluhkoy                                                    | Ahtohqjfzfarn                                                     | Fkpemasoukih | Paterson   | WY   | Canada                   | 1-220-687-2027 |  22215 |      5 | 2.0     | M       |   22 |     555 | O       | Black & Decker                 | 6.0        |      2.59925e+06 |



source_headers: AgencyID
LastName
FirstName
MiddleInitial
Gender
AddressLine1
AddressLine2
PostalCode
City
State
Country
Phone
Income
NumberCars
NumberChildren
MaritalStatus
Age
CreditRating
OwnOrRentFlag
Employer
NumberCreditCards
NetWorth
target_headers: AgID
LaNa
FirN
MiIn
Ge
AddrLi1
AddLi2
PoCo
Ci
St
Co
Pho
Inc
NuCa
NumCh
MaSta
Ag
CreRa
OORFl
Em
NumCreCa
NWo
column_mappings: AgencyID
AgID
LastName
LaNa
FirstName
FirN
MiddleInitial
MiIn
Gender
Ge
AddressLine1
AddrLi1
AddressLine2
AddLi2
PostalCode
PoCo
City
Ci
State
St
Country
Co
Phone
Pho
Income
Inc
NumberCars
NuCa
NumberChildren
NumCh
MaritalStatus
MaSta
Age
Ag
CreditRating
CreRa
OwnOrRentFlag
OORFl
Employer
Em
NumberCreditCards
NumCreCa
NetWorth
NWo
output: {"column_mappings": [["AgencyID", "AgID"], ["LastName", "LaNa"], ["FirstName", "FirN"], ["MiddleInitial", "MiIn"], ["Gender", "Ge"], ["AddressLine1", "AddrLi1"], ["AddressLine2", "AddLi2"], ["PostalCode", "PoCo"], ["City", "Ci"], ["State", "St"], ["Country", "Co"], ["Phone", "Pho"], ["Income", "Inc"], ["NumberCars", "NuCa"], ["NumberChildren", "NumCh"], ["MaritalStatus", "MaSta"], ["Age", "Ag"], ["CreditRating", "CreRa"], ["OwnOrRentFlag", "OORFl"], ["Employer", "Em"], ["NumberCreditCards", "NumCreCa"], ["NetWorth", "NWo"]]}