Task: Data-Imputation (source dataset: tablib)

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:
| Port   | Unnamed: 1   | AF0           | AF1               | AF2            | AF3              | AF4            | AF5                           | AF6                                     | AF7                     | AF8       | AF9       | AF10        |   AF11 | AF12     |   AF13 |   AF14 | AF15     | Unnamed: 18   |
|:-------|:-------------|:--------------|:------------------|:---------------|:-----------------|:---------------|:------------------------------|:----------------------------------------|:------------------------|:----------|:----------|:------------|-------:|:---------|-------:|-------:|:---------|:--------------|
| None   | None         | SYS_AF        | TIM1/TIM2         | TIM3/TIM4/TIM5 | TIM9/TIM10/TIM11 | I2C1/I2C2/I2C3 | SPI1/I2S1/SPI2/I2S2/SPI3/I2S3 | SPI2/I2S2/SPI3/I2S3/SPI4/I2S4/SPI5/I2S5 | SPI3/I2S3/USART1/USART2 | USART6    | I2C2/I2C3 | None        |    nan | SDIO     |    nan |    nan | None     | ADC           |
| PortA  | PA0          | None          | TIM2_CH1/TIM2_ETR | TIM5_CH1       | None             | None           | None                          | None                                    | USART2_CTS              | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN0      |
| PortA  | PA1          | None          | TIM2_CH2          | TIM5_CH2       | None             | None           | SPI4_MOSI/I2S4_SD             | None                                    | USART2_RTS              | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN1      |
| PortA  | PA2          | None          | TIM2_CH3          | TIM5_CH3       | TIM9_CH1         | None           | I2S2_CKIN                     | None                                    | USART2_TX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN2      |
| PortA  | PA3          | None          | TIM2_CH4          | TIM5_CH4       | TIM9_CH2         | None           | I2S2_MCK                      | None                                    | USART2_RX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN3      |
| PortA  | PA4          | None          | None              | None           | None             | None           | SPI1_NSS/I2S1_WS              | SPI3_NSS/I2S3_WS                        | USART2_CK               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN4      |
| PortA  | PA5          | None          | TIM2_CH1/TIM2_ETR | None           | None             | None           | SPI1_SCK/I2S1_CK              | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN5      |
| PortA  | PA6          | None          | TIM1_BKIN         | TIM3_CH1       | None             | None           | SPI1_MISO                     | I2S2_MCK                                | None                    | None      | None      | None        |    nan | SDIO_CMD |    nan |    nan | EVENTOUT | ADC1_IN6      |
| PortA  | PA7          | None          | TIM1_CH1N         | TIM3_CH2       | None             | None           | SPI1_MOSI/I2S1_SD             | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN7      |
| PortA  | PA8          | MCO_1         | TIM1_CH1          | None           | None             | I2C3_SCL       | None                          | None                                    | USART1_CK               | None      | None      | USB_FS_SOF  |    nan | SDIO_D1  |    nan |    nan | EVENTOUT | None          |
| PortA  | PA9          | None          | TIM1_CH2          | None           | None             | I2C3_SMBA      | None                          | None                                    | USART1_TX               | None      | None      | USB_FS_VBUS |    nan | SDIO_D2  |    nan |    nan | EVENTOUT | None          |
| PortA  | PA10         | None          | TIM1_CH3          | None           | None             | None           | None                          | SPI5_MOSI/I2S5_SD                       | USART1_RX               | None      | None      | USB_FS_ID   |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortA  | PA11         | None          | TIM1_CH4          | None           | None             | None           | None                          | SPI4_MISO                               | USART1_CTS              | USART6_TX | None      | USB_FS_DM   |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortA  | PA12         | None          | TIM1_ETR          | None           | None             | None           | None                          | SPI5_MISO                               | USART1_RTS              | USART6_RX | None      | USB_FS_DP   |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortA  | PA13         | JTMS/SWDIO    | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortA  | PA14         | JTCK/SWCLK    | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortA  | PA15         | JTDI          | TIM2_CH1/TIM2_ETR | None           | None             | None           | SPI1_NSS/I2S1_WS              | SPI3_NSS/I2S3_WS                        | USART1_TX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB0          | None          | TIM1_CH2N         | TIM3_CH3       | None             | None           | None                          | SPI5_SCK/I2S5_CK                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN8      |
| PortB  | PB1          | None          | TIM1_CH3N         | TIM3_CH4       | None             | None           | None                          | SPI5_NSS/I2S5_WS                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN9      |
| PortB  | PB2          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB3          | JTDO/TRACESWO | TIM2_CH2          | None           | None             | None           | SPI1_SCK/I2S1_CK              | SPI3_SCK/I2S3_CK                        | USART1_RX               | None      | I2C2_SDA  | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB4          | JTRST         | None              | TIM3_CH1       | None             | None           | SPI1_MISO                     | SPI3_MISO                               | I2S3ext_SD              | None      | I2C3_SDA  | None        |    nan | SDIO_D0  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB5          | None          | None              | TIM3_CH2       | None             | I2C1_SMBA      | SPI1_MOSI/I2S1_SD             | SPI3_MOSI/I2S3_SD                       | None                    | None      | None      | None        |    nan | SDIO_D3  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB6          | None          | None              | TIM4_CH1       | None             | I2C1_SCL       | None                          | None                                    | USART1_TX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB7          | None          | None              | TIM4_CH2       | None             | I2C1_SDA       | None                          | None                                    | USART1_RX               | None      | None      | None        |    nan | SDIO_D0  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB8          | None          | None              | TIM4_CH3       | TIM10_CH1        | I2C1_SCL       | None                          | SPI5_MOSI/I2S5_SD                       | None                    | None      | I2C3_SDA  | None        |    nan | SDIO_D4  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB9          | None          | None              | TIM4_CH4       | TIM11_CH1        | I2C1_SDA       | SPI2_NSS/I2S2_WS              | None                                    | None                    | None      | I2C2_SDA  | None        |    nan | SDIO_D5  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB10         | None          | TIM2_CH3          | None           | None             | I2C2_SCL       | SPI2_SCK/I2S2_CK              | I2S3_MCK                                | None                    | None      | None      | None        |    nan | SDIO_D7  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB11         | None          | TIM2_CH4          | None           | None             | I2C2_SDA       | I2S2_CKIN                     | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB12         | None          | TIM1_BKIN         | None           | None             | I2C2_SMBA      | SPI2_NSS/I2S2_WS              | SPI4_NSS/I2S4_WS                        | SPI3_SCK/I2S3_CK        | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB13         | None          | TIM1_CH1N         | None           | None             | None           | SPI2_SCK/I2S2_CK              | SPI4_SCK/I2S4_CK                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortB  | PB14         | None          | TIM1_CH2N         | None           | None             | None           | SPI2_MISO                     | I2S2ext_SD                              | None                    | None      | None      | None        |    nan | SDIO_D6  |    nan |    nan | EVENTOUT | None          |
| PortB  | PB15         | RTC_50Hz      | TIM1_CH3N         | None           | None             | None           | SPI2_MOSI/I2S2_SD             | None                                    | None                    | None      | None      | None        |    nan | SDIO_CK  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC0          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN10     |
| PortC  | PC1          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN11     |
| PortC  | PC2          | None          | None              | None           | None             | None           | SPI2_MISO                     | I2S2ext_SD                              | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN12     |
| PortC  | PC3          | None          | None              | None           | None             | None           | SPI2_MOSI/I2S2_SD             | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN13     |
| PortC  | PC4          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN14     |
| PortC  | PC5          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | ADC1_IN15     |
| PortC  | PC6          | None          | None              | TIM3_CH1       | None             | None           | I2S2_MCK                      | None                                    | None                    | USART6_TX | None      | None        |    nan | SDIO_D6  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC7          | None          | None              | TIM3_CH2       | None             | None           | SPI2_SCK/I2S2_CK              | I2S3_MCK                                | None                    | USART6_RX | None      | None        |    nan | SDIO_D7  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC8          | None          | None              | TIM3_CH3       | None             | None           | None                          | None                                    | None                    | USART6_CK | None      | None        |    nan | SDIO_D0  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC9          | MCO_2         | None              | TIM3_CH4       | None             | I2C3_SDA       | I2S2_CKIN                     | None                                    | None                    | None      | None      | None        |    nan | SDIO_D1  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC10         | None          | None              | None           | None             | None           | None                          | SPI3_SCK/I2S3_CK                        | None                    | None      | None      | None        |    nan | SDIO_D2  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC11         | None          | None              | None           | None             | None           | I2S3ext_SD                    | SPI3_MISO                               | None                    | None      | None      | None        |    nan | SDIO_D3  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC12         | None          | None              | None           | None             | None           | None                          | SPI3_MOSI/I2S3_SD                       | None                    | None      | None      | None        |    nan | SDIO_CK  |    nan |    nan | EVENTOUT | None          |
| PortC  | PC13         | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortC  | PC14         | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortC  | PC15         | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD0          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD1          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD2          | None          | None              | TIM3_ETR       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | SDIO_CMD |    nan |    nan | EVENTOUT | None          |
| PortD  | PD3          | None          | None              | None           | None             | None           | SPI2_SCK/I2S2_CK              | None                                    | USART2_CTS              | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD4          | None          | None              | None           | None             | None           | None                          | None                                    | USART2_RTS              | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD5          | None          | None              | None           | None             | None           | None                          | None                                    | USART2_TX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD6          | None          | None              | None           | None             | None           | SPI3_MOSI/I2S3_SD             | None                                    | USART2_RX               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD7          | None          | None              | None           | None             | None           | None                          | None                                    | USART2_CK               | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD8          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD9          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD10         | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD11         | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD12         | None          | None              | TIM4_CH1       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD13         | None          | None              | TIM4_CH2       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD14         | None          | None              | TIM4_CH3       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortD  | PD15         | None          | None              | TIM4_CH4       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE0          | None          | None              | TIM4_ETR       | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE1          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE2          | TRACECLK      | None              | None           | None             | None           | SPI4_SCK/I2S4_CK              | SPI5_SCK/I2S5_CK                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE3          | TRACED0       | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE4          | TRACED1       | None              | None           | None             | None           | SPI4_NSS/I2S4_WS              | SPI5_NSS/I2S5_WS                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE5          | TRACED2       | None              | None           | TIM9_CH1         | None           | SPI4_MISO                     | SPI5_MISO                               | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE6          | TRACED3       | None              | None           | TIM9_CH2         | None           | SPI4_MOSI/I2S4_SD             | SPI5_MOSI/I2S5_SD                       | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE7          | None          | TIM1_ETR          | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE8          | None          | TIM1_CH1N         | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE9          | None          | TIM1_CH1          | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE10         | None          | TIM1_CH2N         | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE11         | None          | TIM1_CH2          | None           | None             | None           | SPI4_NSS/I2S4_WS              | SPI5_NSS/I2S5_WS                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE12         | None          | TIM1_CH3N         | None           | None             | None           | SPI4_SCK/I2S4_CK              | SPI5_SCK/I2S5_CK                        | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE13         | None          | [MISSING]         | None           | None             | None           | SPI4_MISO                     | SPI5_MISO                               | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE14         | None          | TIM1_CH4          | None           | None             | None           | SPI4_MOSI/I2S4_SD             | SPI5_MOSI/I2S5_SD                       | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortE  | PE15         | None          | TIM1_BKIN         | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortH  | PH0          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |
| PortH  | PH1          | None          | None              | None           | None             | None           | None                          | None                                    | None                    | None      | None      | None        |    nan | None     |    nan |    nan | EVENTOUT | None          |



row_idx: 78
col_idx: 3
col_name: AF1
label: TIM1_CH3
output: value: TIM1_CH3
tablib_key: tables/job=github_000005/batch=009026/Ey46FEIU1AjwK-SjYMpSlvC73YlzBjJq6-IDVB5Vgzc=