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   | AddressLine2   | City          | NumberCars   | PostalCode   | MiddleInitial   | NumberCreditCards   | AddressLine1       | FirstName   | Age   | Country               | LastName   | Gender   | State                | Phone          |   Income |
|:-----------|:---------------|:--------------|:-------------|:-------------|:----------------|:--------------------|:-------------------|:------------|:------|:----------------------|:-----------|:---------|:---------------------|:---------------|---------:|
| PEL0       |                | Fairbamks     |              | y6b1i1       |                 |                     | 2w857ooympiastreet | Neyti       | 9.0   | Unitedzgatwsofzmerica | PELLAND    | f        | MA                   | 1-712-522-6088 |   368776 |
| LED1       | qPT624         | Quebdc        | 3.0          | 77281        |                 | 3.0                 | 245cobrressc9urt   | TRyDY       | 31.0  | Unit2dStsgesofAmerifa | LEDUC      | F        | PA                   | 1-626-426-4298 |   177967 |
| lat2       |                | Hehderson     | 1.0          | 91355        |                 | 6.0                 | 6617frailungweqt   | ideland     |       | knitedStaredofAmer8ca | latif      |          | Alberta              | 1-524-787-8784 |   321772 |
| RUD3       |                | Sakem         | 1.0          | 36615        |                 | 5.0                 | 11449boalofkpari   | M9sti       | 60.0  | Cqnada                | RUDDICK    |          | AR                   | 1-741-997-1688 |    25449 |
| JAY4       | zpt619         | Toiedo        | 1.0          | r6a1i3       | M               | 2.0                 | 18354dodccojrt     | swrena      | 44.0  | Canava                | JAYAMANNE  | f        | OR                   | 1-002-194-1991 |   166567 |
| tod5       |                | CorpjsChristk | 0.0          | w2b1v3       | Z               | 4.0                 | 1411yroaborostree5 | Paulftte    | 75.0  | UnltedSta5ssofAmericw | todo       | M        | VA                   | 1-441-371-7651 |    43631 |
| Kan6       |                | SaitLxkeCity  | 2.0          | 49513        | R               | 9.0                 | 24697dLORENCEWdSr  | AMAL9TA     | 59.0  | Canadw                | Kanno      | m        | OH                   | 1-957-940-5980 |   466230 |
| Din7       |                | Brpwjsville   | 2.0          | M5d1f6       | Z               | 5.0                 | 648iappl4wooddriv3 | Ern3sto     | 43.0  | UnitedSfag2skfAmerica | Dinkel     |          | Prince Edward Island | 1-768-633-4096 |   420243 |
| Thi8       |                | 4scondido     | 2.0          | V6c1qw       |                 | 2.0                 | q740tgalecourt     | Toby        | 70.0  | UgitedStatesifAmerkcz | Thibodeaux |          | NV                   | 1-107-689-2155 |   141862 |
| May9       |                | LosAng3pes    | 0.0          | 99716        |                 |                     | 14913alexisstf2et  | evangflia   | 57.0  | UnitedStxresofAmegiva | Mayo       |          | Ontario              | 1-173-594-6096 |   402011 |

TableB:
| prospect_gncd   | prospect_ddrssln2                                                 | prospect_ct   |   prospect_nmbrcrs | prospect_pstlcd   | prospect_mddlntl   | prospect_nmbrcrdtcrds   | prospect_ddrssln1                                                           | prospect_frstnm             |   prospect_g | prospect_cntr            | prospect_nmbrchldrn   | prospect_mrtlstts   |   prospect_crdtrtng | prospect_wnrrntflg   | prospect_mplr                  |   prospect_ntwrth |
|:----------------|:------------------------------------------------------------------|:--------------|-------------------:|:------------------|:-------------------|:------------------------|:----------------------------------------------------------------------------|:----------------------------|-------------:|:-------------------------|:----------------------|:--------------------|--------------------:|:---------------------|:-------------------------------|------------------:|
| Iok7501         | GKOIKEZZMQTPQUQZLSAUUMVBDPAXTWNWSXTYJYQ                           | Baltimore     |                  3 | Guudshirvcu       | n                  |                         | jsurlejkapodmkaccruslfkcqmbcquahsyweopxdxknl                                | wbwsqgtaa                   |            7 | United States of America |                       | U                   |                 580 | U                    | FM Global                      |  321776           |
| tia7502         | ocmgcvnexhqhgoyrwpkgaopthdvandlzaaleqccjpjkbirtcqvorobgskhtlgndvn | Kitchener     |                  4 | wyggjewbe         |                    | 2.0                     | Ggptcoorkpeeigqzevhwhjdxdfbrmidyxsugikhgmuvvpcptuphjlgmipvhrrsgepibdupa     | QGJWCPAPZMWHYHZTNOYSSOQBI   |           48 | Canada                   | 4.0                   | S                   |                 683 | R                    | MGIC Investment                |       2.29232e+06 |
| AOI7503         | Cdrxeolwrrxmwmhgexvcstvzz                                         | Saint John    |                  1 | YMZRQICUTHT       | u                  | 2.0                     | Gpcvjzlwouagawronludakqiuhbrbpbkkltrnlkoezgwcawpayfsnejpkmisnryphbtztbfemoy | BHGXDDPUMBESLQMNEPREPTZNNKM |           14 |                          | 5.0                   | M                   |                 411 | O                    | Ross Stores                    |  969707           |
| PJQ7504         | WKSBVOFGJHQGAEKUYRZHHPH                                           | Berkeley      |                  4 | Bcjuycmcen        |                    | 9.0                     | Yxkhkvrobywpdczvwmjgxvnuduavcpyiuceglhaskahgyxqpqjbdroyojouqkzfwvfpsddisy   | Xgnvppcxgfnmawlupgfa        |           29 | United States of America | 5.0                   | W                   |                 818 | U                    |                                |       3.89946e+06 |
| SDV7505         | skxijfqpzshmts                                                    | Missoula      |                  2 | Nujxguyehf        |                    | 7.0                     | Ddsarhvraiskwmrddncqwvzkmjmxtgnpbtgyop                                      | Tfiozpstcftslqtwkgngiiwo    |           69 | United States of America | 4.0                   | U                   |                 370 | R                    | Alliance One International     |       3.74922e+06 |
| Hga7506         | ZETOHHRKIBHCQCKZODIXJJSXCFY                                       | Salinas       |                  0 | Neigswk           | F                  | 6.0                     | Ajpkrmtlcbdzr                                                               | fbcahlrhhjoslfzqvvwwvhk     |           47 |                          | 0.0                   | U                   |                 833 | O                    | Sally Beauty Holdings          |       3.65853e+06 |
| Beo7507         | LJXAXKUJXQBGWBHJJAAM                                              | San Jose      |                  5 | WNCEOQPLW         | D                  | 2.0                     | PKSTPUXQIRGWSXSKWRAJTTNBAOLQKAAJFAPGWIHBWVCHOXLE                            | Dcgkohfcwyoaxckalqnkrzwq    |            0 | Canada                   | 5.0                   | M                   |                 536 | U                    | Wisconsin Energy               |       1.73846e+06 |
| Qum7508         | Jmlgjkjbqhrudrkqrm                                                | Cleveland     |                  0 | Cskdwtkf          |                    | 0.0                     | gyhrpdbplficrfirmtavitgpfmhnnhvsuoqwxrulxlqrdqkzshqovucentrxlakgkpwbrgtd    | Vmnmcsinflxxmmifydckncc     |           46 | United States of America | 0.0                   | S                   |                 775 | R                    | Carpenter Technology           |       3.3073e+06  |
| Hud7509         | Qqcilgblxyikgr                                                    | Huntington    |                  1 | tcxswloetdt       | v                  | 3.0                     | GJTWIDOQOAPDVVULJGOOJBWTTANDJXOCQHWWZAGLGMJQXJOMWFTFVGXIH                   | Vrkbkkxkddtximspigmlbwzt    |            6 | United States of America | 1.0                   | M                   |                 765 | R                    | Liberty Mutual Insurance Group |       1.81642e+06 |
| jba7510         | Ahtohqjfzfarn                                                     | Paterson      |                  5 | Fkpemasoukih      |                    | 6.0                     | Ycltsquohmuugxihqyluhkoy                                                    | RMWCTFTLSVTMCBI             |           22 | Canada                   | 2.0                   | M                   |                 555 | O                    | Black & Decker                 |       2.59925e+06 |



source_headers: AgencyID
AddressLine2
City
NumberCars
PostalCode
MiddleInitial
NumberCreditCards
AddressLine1
FirstName
Age
Country
target_headers: prospect_gncd
prospect_ddrssln2
prospect_ct
prospect_nmbrcrs
prospect_pstlcd
prospect_mddlntl
prospect_nmbrcrdtcrds
prospect_ddrssln1
prospect_frstnm
prospect_g
prospect_cntr
column_mappings: AgencyID
prospect_gncd
AddressLine2
prospect_ddrssln2
City
prospect_ct
NumberCars
prospect_nmbrcrs
PostalCode
prospect_pstlcd
MiddleInitial
prospect_mddlntl
NumberCreditCards
prospect_nmbrcrdtcrds
AddressLine1
prospect_ddrssln1
FirstName
prospect_frstnm
Age
prospect_g
Country
prospect_cntr
output: {"column_mappings": [["AgencyID", "prospect_gncd"], ["AddressLine2", "prospect_ddrssln2"], ["City", "prospect_ct"], ["NumberCars", "prospect_nmbrcrs"], ["PostalCode", "prospect_pstlcd"], ["MiddleInitial", "prospect_mddlntl"], ["NumberCreditCards", "prospect_nmbrcrdtcrds"], ["AddressLine1", "prospect_ddrssln1"], ["FirstName", "prospect_frstnm"], ["Age", "prospect_g"], ["Country", "prospect_cntr"], ["LastName", null], ["Gender", null], ["State", null], ["Phone", null], ["Income", null]]}