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:
| prospect_gncd   | prospect_lstnm                | prospect_frstnm             | prospect_mddlntl   | prospect_gndr   | prospect_ddrssln1                                                           | prospect_ddrssln2                                                 | prospect_pstlcd   | prospect_ct   | prospect_stt   | prospect_cntr            | prospect_phn   |   prospect_ncm |   prospect_nmbrcrs | prospect_nmbrchldrn   | prospect_mrtlstts   |   prospect_g |   prospect_crdtrtng | prospect_wnrrntflg   | prospect_mplr                  | prospect_nmbrcrdtcrds   |   prospect_ntwrth |
|:----------------|:------------------------------|:----------------------------|:-------------------|:----------------|:----------------------------------------------------------------------------|:------------------------------------------------------------------|:------------------|:--------------|:---------------|:-------------------------|:---------------|---------------:|-------------------:|:----------------------|:--------------------|-------------:|--------------------:|:---------------------|:-------------------------------|:------------------------|------------------:|
| 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: prospect_gncd
prospect_lstnm
prospect_frstnm
prospect_mddlntl
prospect_gndr
prospect_ddrssln1
prospect_ddrssln2
prospect_pstlcd
prospect_ct
prospect_stt
prospect_cntr
prospect_phn
prospect_ncm
prospect_nmbrcrs
prospect_nmbrchldrn
prospect_mrtlstts
prospect_g
prospect_crdtrtng
prospect_wnrrntflg
prospect_mplr
prospect_nmbrcrdtcrds
prospect_ntwrth
column_mappings: AgencyID
prospect_gncd
LastName
prospect_lstnm
FirstName
prospect_frstnm
MiddleInitial
prospect_mddlntl
Gender
prospect_gndr
AddressLine1
prospect_ddrssln1
AddressLine2
prospect_ddrssln2
PostalCode
prospect_pstlcd
City
prospect_ct
State
prospect_stt
Country
prospect_cntr
Phone
prospect_phn
Income
prospect_ncm
NumberCars
prospect_nmbrcrs
NumberChildren
prospect_nmbrchldrn
MaritalStatus
prospect_mrtlstts
Age
prospect_g
CreditRating
prospect_crdtrtng
OwnOrRentFlag
prospect_wnrrntflg
Employer
prospect_mplr
NumberCreditCards
prospect_nmbrcrdtcrds
NetWorth
prospect_ntwrth
output: {"column_mappings": [["AgencyID", "prospect_gncd"], ["LastName", "prospect_lstnm"], ["FirstName", "prospect_frstnm"], ["MiddleInitial", "prospect_mddlntl"], ["Gender", "prospect_gndr"], ["AddressLine1", "prospect_ddrssln1"], ["AddressLine2", "prospect_ddrssln2"], ["PostalCode", "prospect_pstlcd"], ["City", "prospect_ct"], ["State", "prospect_stt"], ["Country", "prospect_cntr"], ["Phone", "prospect_phn"], ["Income", "prospect_ncm"], ["NumberCars", "prospect_nmbrcrs"], ["NumberChildren", "prospect_nmbrchldrn"], ["MaritalStatus", "prospect_mrtlstts"], ["Age", "prospect_g"], ["CreditRating", "prospect_crdtrtng"], ["OwnOrRentFlag", "prospect_wnrrntflg"], ["Employer", "prospect_mplr"], ["NumberCreditCards", "prospect_nmbrcrdtcrds"], ["NetWorth", "prospect_ntwrth"]]}