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   |         NetWorth | NumberCars   | Gender   | Employer             |   Income | MiddleInitial   | AddressLine1       | PostalCode   | State              | NumberChildren   | AddressLine2   | LastName   | CreditRating   | FirstName   | City           | Country                  |
|:-----------|:----------------|-----------------:|:-------------|:---------|:---------------------|---------:|:----------------|:-------------------|:-------------|:-------------------|:-----------------|:---------------|:-----------|:---------------|:------------|:---------------|:-------------------------|
| PEL0       | W               |      1.16693e+06 |              | f        | Brlnks               |   109256 |                 | 21847olyhpiastredy | T6b1iw       | MA                 | 4.0              |                | PELLwND    | 317.0          | Netti       | Fairbanks      | United States of America |
| LED1       | U               | 999952           | 2.0          | F        |                      |   189121 |                 | 245congreawckurt   | 77281        | PA                 | 1.0              | AoT624         | LED8C      | 275.0          | TRUDY       | Quebec         | United States of America |
| lat2       | S               |      1.45914e+06 | 3.0          |          |                      |   239342 |                 | 6517rrailingddst   | 91355        | Alnerta            | 3.0              |                | latir      | 533.0          | ireland     | Henderson      | United States of America |
| RUD3       | W               | 839880           | 5.0          |          | AirProdustsChem8salq |   164335 |                 | 11449boaiockpzrk   | 36615        | AR                 | 1.0              |                | RUDDoCK    |                | Misti       | Salem          | Canada                   |
| JAY4       | M               |      1.00522e+06 | 3.0          | f        | Oshkodh              |   280794 | M               | 28354doddsourt     | t6w1i3       | OR                 | 1.0              | Aptu19         | JAgAMANNE  | 283.0          | sarena      | Toledo         | Canada                   |
| tod5       | M               | 935933           | 1.0          | M        |                      |   120354 | Z               | 14wq7rkxborostreet | A2b1v4       | VA                 | 4.0              |                | todo       | 402.0          | Paulette    | Corpus Christi | United States of America |
| Kan6       |                 |  82786           | 3.0          | m        | VegawunEnergy        |     3830 | R               | 24697FL0RENCE3ESy  | 49513        | OH                 | 4.0              |                | uanno      | 427.0          | AMALITA     | Salt Lake City | Canada                   |
| Din7       | M               |      1.03268e+06 | 9.0          |          | IDT                  |   241867 | Z               | 6488applesooddrofe | M5d1vt       | PrinceEd2arsIslxnd | 2.0              |                | Dinjel     | 302.0          | Ernesto     | Brownsville    | United States of America |
| Thi8       | U               |      1.17646e+06 | 6.0          |          | AdwmsR3sourceqEbergy |   124592 |                 | 17404gakecour6     | V6c1q2       | NV                 |                  |                | Tnibodraux | 492.0          | Toby        | Escondido      | United States of America |
| May9       | M               | 562332           | 2.0          |          | MGICIncectment       |   197115 |                 | 15913qlexiss5r3et  | 99716        | 9ntario            | 3.0              |                | Mayo       | 263.0          | evangelia   | Los Angeles    | United States of America |

TableB:
| prospect_gncd   | prospect_mrtlstts   |   prospect_ntwrth | prospect_nmbrcrs   | prospect_gndr   | prospect_mplr            |   prospect_ncm | prospect_mddlntl   | prospect_ddrssln1    | prospect_pstlcd   | prospect_stt         | prospect_nmbrchldrn   | prospect_ddrssln2   | prospect_lstnm   | prospect_crdtrtng   | prospect_phn   | prospect_g   | prospect_wnrrntflg   | prospect_nmbrcrdtcrds   |
|:----------------|:--------------------|------------------:|:-------------------|:----------------|:-------------------------|---------------:|:-------------------|:---------------------|:------------------|:---------------------|:----------------------|:--------------------|:-----------------|:--------------------|:---------------|:-------------|:---------------------|:------------------------|
| PEL0            | W                   |       1.05887e+06 |                    | f               | Brink's                  |         368776 |                    | 21847 olympia street | T6b 1i1           | MA                   | 3.0                   |                     | PELLAND          | 760.0               | 1-712-522-6088 | 20.0         | O                    |                         |
| LED1            | U                   |       1.98818e+06 | 5.0                | F               |                          |         177967 |                    | 245 congress court   | 77281             | PA                   | 1.0                   | APT. 624            | LEDUC            | 555.0               | 1-626-426-4298 | 3.0          | U                    | 6.0                     |
| lat2            | S                   |       3.67313e+06 | 2.0                |                 |                          |         321772 |                    | 6517 frailing west   | 91355             | Alberta              | 1.0                   |                     | latif            | 566.0               | 1-524-787-8784 |              | O                    | 6.0                     |
| RUD3            | W                   |       2.0059e+06  | 2.0                |                 | Air Products & Chemicals |          25449 |                    | 11449 blalock park   | 36615             | AR                   | 1.0                   |                     | RUDDICK          |                     | 1-741-997-1688 | 77.0         | O                    | 3.0                     |
| JAY4            | M                   |  624736           | 0.0                | f               | Oshkosh                  |         166567 | M                  | 18354 dodd court     | t6a 1i3           | OR                   | 3.0                   | Apt. 619            | JAYAMANNE        | 815.0               | 1-002-194-1991 | 21.0         | O                    | 4.0                     |
| tod5            | M                   |       3.06462e+06 | 1.0                | M               |                          |          43631 | Z                  | 14117 roxboro street | A2b 1v3           | VA                   | 4.0                   |                     | todo             | 333.0               | 1-441-371-7651 | 77.0         | R                    | 10.0                    |
| Kan6            |                     |       3.48913e+06 | 4.0                | m               | VeraSun Energy           |         466230 | R                  | 24697 FLORENCE WEST  | 49513             | OH                   | 0.0                   |                     | Kanno            | 528.0               | 1-957-940-5980 | 23.0         | O                    | 1.0                     |
| Din7            | M                   |       3.43074e+06 | 2.0                |                 | IDT                      |         420243 | Z                  | 6488 applewood drive | M5d 1v6           | Prince Edward Island | 2.0                   |                     | Dinkel           | 680.0               | 1-768-633-4096 | 9.0          | U                    | 7.0                     |
| Thi8            | U                   |       1.74361e+06 | 3.0                |                 | Adams Resources & Energy |         141862 |                    | 17404 gale court     | V6c 1q1           | NV                   |                       |                     | Thibodeaux       | 761.0               | 1-107-689-2155 | 63.0         | O                    | 10.0                    |
| May9            | M                   |  216299           | 0.0                |                 | MGIC Investment          |         402011 |                    | 15913 alexis street  | 99716             | Ontario              | 2.0                   |                     | Mayo             | 416.0               | 1-173-594-6096 | 32.0         | O                    |                         |



source_headers: AgencyID
MaritalStatus
NetWorth
NumberCars
Gender
Employer
Income
MiddleInitial
AddressLine1
PostalCode
State
NumberChildren
AddressLine2
LastName
CreditRating
target_headers: prospect_gncd
prospect_mrtlstts
prospect_ntwrth
prospect_nmbrcrs
prospect_gndr
prospect_mplr
prospect_ncm
prospect_mddlntl
prospect_ddrssln1
prospect_pstlcd
prospect_stt
prospect_nmbrchldrn
prospect_ddrssln2
prospect_lstnm
prospect_crdtrtng
column_mappings: AgencyID
prospect_gncd
MaritalStatus
prospect_mrtlstts
NetWorth
prospect_ntwrth
NumberCars
prospect_nmbrcrs
Gender
prospect_gndr
Employer
prospect_mplr
Income
prospect_ncm
MiddleInitial
prospect_mddlntl
AddressLine1
prospect_ddrssln1
PostalCode
prospect_pstlcd
State
prospect_stt
NumberChildren
prospect_nmbrchldrn
AddressLine2
prospect_ddrssln2
LastName
prospect_lstnm
CreditRating
prospect_crdtrtng
output: {"column_mappings": [["AgencyID", "prospect_gncd"], ["MaritalStatus", "prospect_mrtlstts"], ["NetWorth", "prospect_ntwrth"], ["NumberCars", "prospect_nmbrcrs"], ["Gender", "prospect_gndr"], ["Employer", "prospect_mplr"], ["Income", "prospect_ncm"], ["MiddleInitial", "prospect_mddlntl"], ["AddressLine1", "prospect_ddrssln1"], ["PostalCode", "prospect_pstlcd"], ["State", "prospect_stt"], ["NumberChildren", "prospect_nmbrchldrn"], ["AddressLine2", "prospect_ddrssln2"], ["LastName", "prospect_lstnm"], ["CreditRating", "prospect_crdtrtng"], ["FirstName", null], ["City", null], ["Country", null]]}