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   | CreditRating   | AddressLine1       | State              |         NetWorth | City          | Age   | Country               | Phone          | NumberChildren   | FirstName   | OwnOrRentFlag   | NumberCreditCards   |   Income | NumberCars   | LastName   | MiddleInitial   | Gender   |
|:-----------|:---------------|:-------------------|:-------------------|-----------------:|:--------------|:------|:----------------------|:---------------|:-----------------|:------------|:----------------|:--------------------|---------:|:-------------|:-----------|:----------------|:---------|
| PEL0       | 872.0          | 2w847oljmp7astreet | MA                 |      2.63639e+06 | Fairbanus     | 34.0  | UnitsdSgatesofAmfricx | 1 712 522 6088 | 6.0              | getti       | O               |                     |   155681 |              | PELLAND    |                 | f        |
| LED1       | 941.0          | 24tcongr4secourt   | PA                 |      2.48524e+06 | wuebec        | 102.0 | UnitsdStatrcofqmerica | 1 626 426 4298 | 4.0              | TeUDY       | U               | 2.0                 |   112129 | 3.0          | LEDUC      |                 | F        |
| lat2       | 958.0          | 65q7frailihywest   | Alber5a            |      3.53966e+06 | Hend4rson     |       | UnktedStxtedofAmericx | 1 524 787 8784 | 4.0              | irrland     | O               | 1.0                 |    49161 | 2.0          | latif      |                 |          |
| RUD3       |                | 12549blalockpqrk   | AR                 |      1.6124e+06  | xalem         | 103.0 | Canadx                | 1 741 997 1688 | 3.0              | Miqti       | O               | 2.0                 |   159938 | 1.0          | RUDDICK    |                 |          |
| JAY4       | 846.0          | 18354rodecourt     | OR                 |      1.85126e+06 | Toiedo        | 80.0  | Canadx                | 1 002 194 1991 | 5.0              | szrena      | O               | 1.0                 |    83978 | 4.0          | JAYAMANNE  | M               | f        |
| tod5       | 755.0          | 14117rpxborlsyreet | VA                 | 368444           | CorpusChriz5i | 88.0  | UnitfdStatfsofqmericw | 1 441 371 7651 | 2.0              | Paule6te    | R               | 1.0                 |    83953 | 0.0          | todo       | Z               | M        |
| Kan6       | 845.0          | 23697bLORENCEWdST  | OH                 |      3.04121e+06 | SsltLakeCith  | 30.0  | vanada                | 1 957 940 5980 | 5.0              | AMsLITA     | O               | 2.0                 |   125752 | 1.0          | Kanno      | R               | m        |
| Din7       | 1264.0         | 6488sppiewo0ddrive | PrinxeEcwarvIsland |      3.33671e+06 | Bro2nwville   | 133.0 | UnitedSrateeofAmerkda | 1 768 633 4096 | 4.0              | Ernes4o     | U               | 5.0                 |   157114 | 1.0          | Dinkel     | Z               |          |
| Thi8       | 1119.0         | 1740tgalecou5t     | NV                 |      5.14511e+06 | 2scondido     | 65.0  | UnitedStatds8fAmdricz | 1 107 689 2155 |                  | Toby        | O               | 1.0                 |    79005 | 2.0          | Thibodeaux |                 |          |
| May9       | 1054.0         | 15913alexiswt5e3t  | Ontaril            |      3.55792e+06 | Loswngeoes    | 78.0  | UnitecStatespfwmrrica | 1 173 594 6096 | 6.0              | evangslia   | O               |                     |    55220 | 3.0          | Mayo       |                 |          |

TableB:
| AgeID   | CrRa   | AddLi1               | Sta                  |              NWo | C              | Ag   | Coun                     | Ph             | NumChi   | FirN      | OORF   | NumCrCa   |     In | NumC   | AddL2    | PoC     | MaSt   | Empl                     |
|:--------|:-------|:---------------------|:---------------------|-----------------:|:---------------|:-----|:-------------------------|:---------------|:---------|:----------|:-------|:----------|-------:|:-------|:---------|:--------|:-------|:-------------------------|
| PEL0    | 760.0  | 21847 olympia street | MA                   |      1.05887e+06 | Fairbanks      | 20.0 | United States of America | 1-712-522-6088 | 3.0      | Netti     | O      |           | 368776 |        |          | T6b 1i1 | W      | Brink's                  |
| LED1    | 555.0  | 245 congress court   | PA                   |      1.98818e+06 | Quebec         | 3.0  | United States of America | 1-626-426-4298 | 1.0      | TRUDY     | U      | 6.0       | 177967 | 5.0    | APT. 624 | 77281   | U      |                          |
| lat2    | 566.0  | 6517 frailing west   | Alberta              |      3.67313e+06 | Henderson      |      | United States of America | 1-524-787-8784 | 1.0      | ireland   | O      | 6.0       | 321772 | 2.0    |          | 91355   | S      |                          |
| RUD3    |        | 11449 blalock park   | AR                   |      2.0059e+06  | Salem          | 77.0 | Canada                   | 1-741-997-1688 | 1.0      | Misti     | O      | 3.0       |  25449 | 2.0    |          | 36615   | W      | Air Products & Chemicals |
| JAY4    | 815.0  | 18354 dodd court     | OR                   | 624736           | Toledo         | 21.0 | Canada                   | 1-002-194-1991 | 3.0      | sarena    | O      | 4.0       | 166567 | 0.0    | Apt. 619 | t6a 1i3 | M      | Oshkosh                  |
| tod5    | 333.0  | 14117 roxboro street | VA                   |      3.06462e+06 | Corpus Christi | 77.0 | United States of America | 1-441-371-7651 | 4.0      | Paulette  | R      | 10.0      |  43631 | 1.0    |          | A2b 1v3 | M      |                          |
| Kan6    | 528.0  | 24697 FLORENCE WEST  | OH                   |      3.48913e+06 | Salt Lake City | 23.0 | Canada                   | 1-957-940-5980 | 0.0      | AMALITA   | O      | 1.0       | 466230 | 4.0    |          | 49513   |        | VeraSun Energy           |
| Din7    | 680.0  | 6488 applewood drive | Prince Edward Island |      3.43074e+06 | Brownsville    | 9.0  | United States of America | 1-768-633-4096 | 2.0      | Ernesto   | U      | 7.0       | 420243 | 2.0    |          | M5d 1v6 | M      | IDT                      |
| Thi8    | 761.0  | 17404 gale court     | NV                   |      1.74361e+06 | Escondido      | 63.0 | United States of America | 1-107-689-2155 |          | Toby      | O      | 10.0      | 141862 | 3.0    |          | V6c 1q1 | U      | Adams Resources & Energy |
| May9    | 416.0  | 15913 alexis street  | Ontario              | 216299           | Los Angeles    | 32.0 | United States of America | 1-173-594-6096 | 2.0      | evangelia | O      |           | 402011 | 0.0    |          | 99716   | M      | MGIC Investment          |



source_headers: AgencyID
CreditRating
AddressLine1
State
NetWorth
City
Age
Country
Phone
NumberChildren
FirstName
OwnOrRentFlag
NumberCreditCards
Income
NumberCars
target_headers: AgeID
CrRa
AddLi1
Sta
NWo
C
Ag
Coun
Ph
NumChi
FirN
OORF
NumCrCa
In
NumC
column_mappings: AgencyID
AgeID
CreditRating
CrRa
AddressLine1
AddLi1
State
Sta
NetWorth
NWo
City
C
Age
Ag
Country
Coun
Phone
Ph
NumberChildren
NumChi
FirstName
FirN
OwnOrRentFlag
OORF
NumberCreditCards
NumCrCa
Income
In
NumberCars
NumC
output: {"column_mappings": [["AgencyID", "AgeID"], ["CreditRating", "CrRa"], ["AddressLine1", "AddLi1"], ["State", "Sta"], ["NetWorth", "NWo"], ["City", "C"], ["Age", "Ag"], ["Country", "Coun"], ["Phone", "Ph"], ["NumberChildren", "NumChi"], ["FirstName", "FirN"], ["OwnOrRentFlag", "OORF"], ["NumberCreditCards", "NumCrCa"], ["Income", "In"], ["NumberCars", "NumC"], ["LastName", null], ["MiddleInitial", null], ["Gender", null]]}