Task: Formula-prediction-context (source dataset: enron-random)

You are given an table region extracted from a real Excel spreadsheet, which is centered around a cell called "Target Cell" (labeled as "[Target Cell]" shown in the table below). The table region below includes up to 10 rows above/below the Target Cell, and 10 columns to the left/right of the Target Cell. 

Your task is to analyze the table context surrounding the Target Cell, and predict the most likely Excel formula that should go in the Target Cell. If multiple formulas are possible, choose the most reasonable or commonly used based on context.

1. Please follow the standard formula syntax in Excel, e.g. always begins with an equal sign (=).
2. Base your predicted formula on the surrounding table context, e.g., column headers, annotations, and data values in nearby cells.
3. No explanation — just output the formula itself in a JSON format: {"formula": "your_formula_here"}.

Input Excel Snippet in Markdown format:
|    | R                   | S                   | T                   | U                   | V                   | W                   | X                   | Y                   | Z                   | AA                  | AB                  | AC                  | AD                  | AE                  | AF   | AG   | AH   | AI   | AJ   | AK   | AL   |
|---:|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:--------------------|:-----|:-----|:-----|:-----|:-----|:-----|:-----|
| 10 |                     | 1.0                 |                     | 1.0                 | 1.0                 | 2.0                 | 1.0                 |                     | 1.0                 | 1.0                 | 1.0                 |                     | 1.0                 |                     |      |      |      |      |      |      |      |
| 11 | 26.0                | 8.0                 | 23.0                | 15.0                | 19.0                | 29.0                | 24.0                | 17.0                | 14.0                | 23.0                | 18.0                | 11.0                | 16.0                |                     |      |      |      |      |      |      |      |
| 12 | 2001-06-25 00:00:00 | 2001-07-02 00:00:00 | 2001-07-09 00:00:00 | 2001-07-16 00:00:00 | 2001-07-23 00:00:00 | 2001-07-30 00:00:00 | 2001-08-06 00:00:00 | 2001-08-13 00:00:00 | 2001-08-20 00:00:00 | 2001-08-27 00:00:00 | 2001-09-04 00:00:00 | 2001-09-10 00:00:00 | 2001-09-17 00:00:00 |                     |      |      |      |      |      |      |      |
| 13 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 14 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 15 |                     |                     |                     |                     |                     |                     |                     | 3.0                 | 1.0                 |                     | 3.0                 | 2.0                 | 3.0                 | EIM                 |      |      |      |      |      |      |      |
| 16 |                     |                     |                     |                     |                     |                     | 14.0                | 3.0                 | 8.0                 | 2.0                 | 9.0                 | 17.0                | 57.0                | EGM                 |      |      |      |      |      |      |      |
| 17 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     | EBS                 |      |      |      |      |      |      |      |
| 18 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     | EEL                 |      |      |      |      |      |      |      |
| 19 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     | EES                 |      |      |      |      |      |      |      |
| 20 |                     |                     |                     |                     |                     |                     | 6.0                 | 7.0                 | 3.0                 | 11.0                | [Target Cell]       | 17.0                | 6.0                 | EAM                 |      |      |      |      |      |      |      |
| 21 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 22 |                     |                     |                     |                     |                     |                     | 20.0                | 13.0                | 12.0                | 13.0                | 13.0                | 36.0                | 66.0                | Total Books Created |      |      |      |      |      |      |      |
| 23 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 24 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     | Curve Creation      |      |      |      |      |      |      |      |
| 25 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 26 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 27 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 28 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 29 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |
| 30 |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |                     |      |      |      |      |      |      |      |



min_row: 10
max_row: 30
min_col: 18
max_col: 38
target_cell_row_idx: 20
target_cell_col_idx: 28
target_cell_value: 1.0
formula: =1