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   |   Income | AddressLine1       | AddressLine2   | NumberChildren   | City          | Country               | Gender   |    NetWorth | Phone          | MaritalStatus   | LastName   | FirstName   | MiddleInitial   | PostalCode   | State                |
|:-----------|---------:|:-------------------|:---------------|:-----------------|:--------------|:----------------------|:---------|------------:|:---------------|:----------------|:-----------|:------------|:----------------|:-------------|:---------------------|
| PEL0       |   348720 | 22847olympiactr2et |                | 0.0              | Fqirbanks     | UnitwdStateaotAmeruca | f        | 1.42625e+06 | 1 712 522 6088 | W               | PELLAND    | Netti       |                 | T6b 1i1      | MA                   |
| LED1       |   137822 | 245sojgreqscourt   | A9T624         | 5.0              | Quebrc        | UnjtedStat4sotAmerjca | F        | 1.53831e+06 | 1 626 426 4298 | U               | LEDUC      | TRUDY       |                 | 77281        | PA                   |
| lat2       |   150063 | 6517fgsilingeest   |                | 10.0             | Hemderson     | UnutedStatezofAmer8cx |          | 2.29206e+06 | 1 524 787 8784 | S               | latif      | ireland     |                 | 91355        | Alberta              |
| RUD3       |    55157 | 11449bial0ckpqrk   |                | 1.0              | Sal3m         | xanada                |          | 3.22863e+06 | 1 741 997 1688 | W               | RUDDICK    | Misti       |                 | 36615        | AR                   |
| JAY4       |   179710 | 18354doddclirt     | Apty19         | 3.0              | holedo        | Cahada                | f        | 3.3762e+06  | 1 002 194 1991 | M               | JAYAMANNE  | sarena      | M               | t6a 1i3      | OR                   |
| tod5       |   194968 | 14117roxvorosttedt |                | 2.0              | CorpusCgrist9 | UjitedStztedifAmerica | M        | 3.49782e+06 | 1 441 371 7651 | M               | todo       | Paulette    | Z               | A2b 1v3      | VA                   |
| Kan6       |   279320 | 24697FLORENCsWEw5  |                | 3.0              | SaltLqkedity  | Cxnada                | m        | 3.88445e+06 | 1 957 940 5980 |                 | Kanno      | AMALITA     | R               | 49513        | OH                   |
| Din7       |   194081 | 6488applewokddeibe |                | 5.0              | Br8wnsvikle   | UnutedStxtesofAmer9cs |          | 3.60022e+06 | 1 768 633 4096 | M               | Dinkel     | Ernesto     | Z               | M5d 1v6      | Prince Edward Island |
| Thi8       |   424550 | 1740rgalec8urt     |                |                  | 3scondido     | UniteddtatexofAmet7ca |          | 1.91802e+06 | 1 107 689 2155 | U               | Thibodeaux | Toby        |                 | V6c 1q1      | NV                   |
| May9       |   123462 | 159q3aleaisstre3t  |                | 8.0              | LosAng2led    | Un8tfdStxtesofAmericw |          | 4.91208e+06 | 1 173 594 6096 | M               | Mayo       | evangelia   |                 | 99716        | Ontario              |

TableB:
| prospect_AgID   |   prospect_Inc | prospect_AdLi1       | prospect_AddrLi2   | prospect_NumChi   | prospect_C     | prospect_Co              | prospect_Ge   |    prospect_NeWo | prospect_Pho   | prospect_MarSt   | prospect_NumCa   | prospect_A   | prospect_CreRa   | prospect_OwOReF   | prospect_Emp             | prospect_NuCreCa   |
|:----------------|---------------:|:---------------------|:-------------------|:------------------|:---------------|:-------------------------|:--------------|-----------------:|:---------------|:-----------------|:-----------------|:-------------|:-----------------|:------------------|:-------------------------|:-------------------|
| PEL0            |         368776 | 21847 olympia street |                    | 3.0               | Fairbanks      | United States of America | f             |      1.05887e+06 | 1-712-522-6088 | W                |                  | 20.0         | 760.0            | O                 | Brink's                  |                    |
| LED1            |         177967 | 245 congress court   | APT. 624           | 1.0               | Quebec         | United States of America | F             |      1.98818e+06 | 1-626-426-4298 | U                | 5.0              | 3.0          | 555.0            | U                 |                          | 6.0                |
| lat2            |         321772 | 6517 frailing west   |                    | 1.0               | Henderson      | United States of America |               |      3.67313e+06 | 1-524-787-8784 | S                | 2.0              |              | 566.0            | O                 |                          | 6.0                |
| RUD3            |          25449 | 11449 blalock park   |                    | 1.0               | Salem          | Canada                   |               |      2.0059e+06  | 1-741-997-1688 | W                | 2.0              | 77.0         |                  | O                 | Air Products & Chemicals | 3.0                |
| JAY4            |         166567 | 18354 dodd court     | Apt. 619           | 3.0               | Toledo         | Canada                   | f             | 624736           | 1-002-194-1991 | M                | 0.0              | 21.0         | 815.0            | O                 | Oshkosh                  | 4.0                |
| tod5            |          43631 | 14117 roxboro street |                    | 4.0               | Corpus Christi | United States of America | M             |      3.06462e+06 | 1-441-371-7651 | M                | 1.0              | 77.0         | 333.0            | R                 |                          | 10.0               |
| Kan6            |         466230 | 24697 FLORENCE WEST  |                    | 0.0               | Salt Lake City | Canada                   | m             |      3.48913e+06 | 1-957-940-5980 |                  | 4.0              | 23.0         | 528.0            | O                 | VeraSun Energy           | 1.0                |
| Din7            |         420243 | 6488 applewood drive |                    | 2.0               | Brownsville    | United States of America |               |      3.43074e+06 | 1-768-633-4096 | M                | 2.0              | 9.0          | 680.0            | U                 | IDT                      | 7.0                |
| Thi8            |         141862 | 17404 gale court     |                    |                   | Escondido      | United States of America |               |      1.74361e+06 | 1-107-689-2155 | U                | 3.0              | 63.0         | 761.0            | O                 | Adams Resources & Energy | 10.0               |
| May9            |         402011 | 15913 alexis street  |                    | 2.0               | Los Angeles    | United States of America |               | 216299           | 1-173-594-6096 | M                | 0.0              | 32.0         | 416.0            | O                 | MGIC Investment          |                    |



source_headers: AgencyID
Income
AddressLine1
AddressLine2
NumberChildren
City
Country
Gender
NetWorth
Phone
MaritalStatus
target_headers: prospect_AgID
prospect_Inc
prospect_AdLi1
prospect_AddrLi2
prospect_NumChi
prospect_C
prospect_Co
prospect_Ge
prospect_NeWo
prospect_Pho
prospect_MarSt
column_mappings: AgencyID
prospect_AgID
Income
prospect_Inc
AddressLine1
prospect_AdLi1
AddressLine2
prospect_AddrLi2
NumberChildren
prospect_NumChi
City
prospect_C
Country
prospect_Co
Gender
prospect_Ge
NetWorth
prospect_NeWo
Phone
prospect_Pho
MaritalStatus
prospect_MarSt
output: {"column_mappings": [["AgencyID", "prospect_AgID"], ["Income", "prospect_Inc"], ["AddressLine1", "prospect_AdLi1"], ["AddressLine2", "prospect_AddrLi2"], ["NumberChildren", "prospect_NumChi"], ["City", "prospect_C"], ["Country", "prospect_Co"], ["Gender", "prospect_Ge"], ["NetWorth", "prospect_NeWo"], ["Phone", "prospect_Pho"], ["MaritalStatus", "prospect_MarSt"], ["LastName", null], ["FirstName", null], ["MiddleInitial", null], ["PostalCode", null], ["State", null]]}