Task: Data-Imputation (source dataset: WebTable)

Please fill in the missing value in the input table. The missing value is denoted by '[MISSING]'. Please only return the value filled in. Do not return the whole table.

No explanation, return the value filled in JSON format: {"value": "filled_value"}. 

Input Table:
| Populations    | Distribution                                                                                                                                                   | Source                                       |
|:---------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------|
| Tajiks         | 22.5% (9/40), 11.1% (6/54) L1a and L1c in Balkh Province, 9.0% (7/78), 6.3% (1/16) L1c in Samangan Province, 5.4% (2/37) L1c in Badakhshan Province            | Malyarchuk 2013Wells 2001                    |
| Uzbeks         | 20% (1/5) L1c in Balkh Province, 14.3% (4/28) L1a and L1c in Sar-e Pol Province, 7.5% (7/94)L1a, L1b and L1c in Jawzjan Province, 3.0% (11/366) to 3.7% (2/54) | Wells 2001, Karafet 2001 and Cristofaro 2013 |
| Uyghurs        | 16.7% (1/6) L1c in Kyrgyzstan                                                                                                                                  | Cristofaro 2013                              |
| Pamiris        | 16% (7/44) of Shugnanis, 12% 3/25 of Ishkashimis, 0/30 Bartangis                                                                                               | Wells 2001                                   |
| Hazaras        | 12.5% (1/8) L1a in Balkh Province, 1.9% (2/69) L1a in Bamiyan Province                                                                                         | [MISSING]                                    |
| Yagnobis       | 9.7% (3/31)                                                                                                                                                    | Wells 2001                                   |
| Bukharan Arabs | 9.5% (4/42)                                                                                                                                                    | Wells 2001                                   |
| Pashtuns       | 9.4% (5/53) L1a and L1b in Kunduz Province, 2.9% (1/34) L1c in Baghlan Province                                                                                | Cristofaro 2013                              |
| Dungans        | 8.3% (1/12) L1c in Kyrgyzstan                                                                                                                                  | Cristofaro 2013                              |
| Karakalpaks    | 4.5% (2/44)                                                                                                                                                    | Wells 2001                                   |
| Uyghurs        | 4.4% (3/68)                                                                                                                                                    | Karafet 2001 and Hammer 2005                 |
| Turkmens       | 4.1% (3/74) L1a in Jawzjan Province                                                                                                                            | Cristofaro 2013                              |
| Chelkans       | 4.0% (1/25)                                                                                                                                                    | Dulik 2012 and Dulik 2012                    |
| Kyrgyzes       | 2.7% (1/37) L1c in Northwest Kyrgyzstan and 2.5% (1/40) L1a in Central Kyrgyzstan                                                                              | Cristofaro 2013                              |
| Kazan Tatars   | 2.6% (1/38)                                                                                                                                                    | Wells 2001                                   |
| Hui            | 1.9% (1/54)                                                                                                                                                    | Karafet 2001                                 |
| Bashkirs       | 0.64% (3/471)                                                                                                                                                  | Lobov 2009                                   |



row_idx: 4
col_idx: 2
col_name: Source
label: Cristofaro 2013