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   | FirstName   | MiddleInitial   | LastName   | AddressLine1       | NumberCars   | OwnOrRentFlag   | AddressLine2   | Gender   | CreditRating   | City          | PostalCode   | State                | Country                  | Phone          |   Income |
|:-----------|:------------|:----------------|:-----------|:-------------------|:-------------|:----------------|:---------------|:---------|:---------------|:--------------|:-------------|:---------------------|:-------------------------|:---------------|---------:|
| PEL0       | Negti       |                 | PELLzND    | 21847ilympiactre2t |              | O               |                | f        | 637.0          | dairbanks     | T6b 1i1      | MA                   | United States of America | 1-712-522-6088 |   368776 |
| LED1       | TR6DY       |                 | LrDUC      | 255cohgressvourt   | 1.0          | U               | APT62e         | F        | 763.0          | Quevec        | 77281        | PA                   | United States of America | 1-626-426-4298 |   177967 |
| lat2       | irdland     |                 | lwtif      | 6517frailinnw4sr   | 1.0          | O               |                |          | 712.0          | Hendersoj     | 91355        | Alberta              | United States of America | 1-524-787-8784 |   321772 |
| RUD3       | M8sti       |                 | RUDDIxK    | 11449blzl8ckparj   | 2.0          | O               |                |          |                | dalem         | 36615        | AR                   | Canada                   | 1-741-997-1688 |    25449 |
| JAY4       | darena      | M               | JAYAnANNE  | w8354d8ddcourt     | 3.0          | O               | Aptu19         | f        | 638.0          | Tolexo        | t6a 1i3      | OR                   | Canada                   | 1-002-194-1991 |   166567 |
| tod5       | Paulet6e    | Z               | todo       | 141173oxb0dostreet | 4.0          | R               |                | M        | 1102.0         | CorpucCheisti | A2b 1v3      | VA                   | United States of America | 1-441-371-7651 |    43631 |
| Kan6       | AMALITz     | R               | uanno      | 23697cLOREmCEWEST  | 2.0          | O               |                | m        | 998.0          | SwitLakeCity  | 49513        | OH                   | Canada                   | 1-957-940-5980 |   466230 |
| Din7       | Ernezto     | Z               | xinkel     | 6488xoplewooddrivs | 0.0          | U               |                |          | 1182.0         | htownsville   | M5d 1v6      | Prince Edward Island | United States of America | 1-768-633-4096 |   420243 |
| Thi8       | Toby        |                 | 4hibofeaux | 17404galdckurt     | 3.0          | O               |                |          | 1038.0         | Escondodo     | V6c 1q1      | NV                   | United States of America | 1-107-689-2155 |   141862 |
| May9       | evangeliw   |                 | Mayo       | 15913alexies6rest  | 2.0          | O               |                |          | 775.0          | LosAnfelee    | 99716        | Ontario              | United States of America | 1-173-594-6096 |   402011 |

TableB:
| AgID   | FirN      | MiIni   | LN         | AddLi1               | NumCa   | OORFl   | AdL2     | Gen   | CreRa   | Ci             | NuChil   | MariSta   | Ag   | Em                       | NumCrCar   |            NeWor |
|:-------|:----------|:--------|:-----------|:---------------------|:--------|:--------|:---------|:------|:--------|:---------------|:---------|:----------|:-----|:-------------------------|:-----------|-----------------:|
| PEL0   | Netti     |         | PELLAND    | 21847 olympia street |         | O       |          | f     | 760.0   | Fairbanks      | 3.0      | W         | 20.0 | Brink's                  |            |      1.05887e+06 |
| LED1   | TRUDY     |         | LEDUC      | 245 congress court   | 5.0     | U       | APT. 624 | F     | 555.0   | Quebec         | 1.0      | U         | 3.0  |                          | 6.0        |      1.98818e+06 |
| lat2   | ireland   |         | latif      | 6517 frailing west   | 2.0     | O       |          |       | 566.0   | Henderson      | 1.0      | S         |      |                          | 6.0        |      3.67313e+06 |
| RUD3   | Misti     |         | RUDDICK    | 11449 blalock park   | 2.0     | O       |          |       |         | Salem          | 1.0      | W         | 77.0 | Air Products & Chemicals | 3.0        |      2.0059e+06  |
| JAY4   | sarena    | M       | JAYAMANNE  | 18354 dodd court     | 0.0     | O       | Apt. 619 | f     | 815.0   | Toledo         | 3.0      | M         | 21.0 | Oshkosh                  | 4.0        | 624736           |
| tod5   | Paulette  | Z       | todo       | 14117 roxboro street | 1.0     | R       |          | M     | 333.0   | Corpus Christi | 4.0      | M         | 77.0 |                          | 10.0       |      3.06462e+06 |
| Kan6   | AMALITA   | R       | Kanno      | 24697 FLORENCE WEST  | 4.0     | O       |          | m     | 528.0   | Salt Lake City | 0.0      |           | 23.0 | VeraSun Energy           | 1.0        |      3.48913e+06 |
| Din7   | Ernesto   | Z       | Dinkel     | 6488 applewood drive | 2.0     | U       |          |       | 680.0   | Brownsville    | 2.0      | M         | 9.0  | IDT                      | 7.0        |      3.43074e+06 |
| Thi8   | Toby      |         | Thibodeaux | 17404 gale court     | 3.0     | O       |          |       | 761.0   | Escondido      |          | U         | 63.0 | Adams Resources & Energy | 10.0       |      1.74361e+06 |
| May9   | evangelia |         | Mayo       | 15913 alexis street  | 0.0     | O       |          |       | 416.0   | Los Angeles    | 2.0      | M         | 32.0 | MGIC Investment          |            | 216299           |



source_headers: AgencyID
FirstName
MiddleInitial
LastName
AddressLine1
NumberCars
OwnOrRentFlag
AddressLine2
Gender
CreditRating
City
target_headers: AgID
FirN
MiIni
LN
AddLi1
NumCa
OORFl
AdL2
Gen
CreRa
Ci
column_mappings: AgencyID
AgID
FirstName
FirN
MiddleInitial
MiIni
LastName
LN
AddressLine1
AddLi1
NumberCars
NumCa
OwnOrRentFlag
OORFl
AddressLine2
AdL2
Gender
Gen
CreditRating
CreRa
City
Ci
output: {"column_mappings": [["AgencyID", "AgID"], ["FirstName", "FirN"], ["MiddleInitial", "MiIni"], ["LastName", "LN"], ["AddressLine1", "AddLi1"], ["NumberCars", "NumCa"], ["OwnOrRentFlag", "OORFl"], ["AddressLine2", "AdL2"], ["Gender", "Gen"], ["CreditRating", "CreRa"], ["City", "Ci"], ["PostalCode", null], ["State", null], ["Country", null], ["Phone", null], ["Income", null]]}