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:
|    | A                     | B       | C        |      D | E       | F        |      G | H             | I   | J   | K   | L   | M   | N   | O   | P   | Q   | R   |
|---:|:----------------------|:--------|:---------|-------:|:--------|:---------|-------:|:--------------|:----|:----|:----|:----|:----|:----|:----|:----|:----|:----|
|  4 | HPL 18 - Three Rivers |         | 9278.0   |   9278 |         | 4617.0   |   4617 | 9278.0        |     |     |     |     |     |     |     |     |     |     |
|  5 | HPL 21 - Big Cowboy   | 550.0   | 632.0    |   1182 |         | 0.0      |      0 |               |     |     |     |     |     |     |     |     |     |     |
|  6 | HPL 22 - Nueces       |         | 0.0      |      0 | 3465.0  | 5000.0   |   8465 |               |     |     |     |     |     |     |     |     |     |     |
|  7 | HPL 2 - Robstown      | 16071.0 | 138988.0 | 155059 | 15771.0 | 617.0    |  16388 | 155059.0      |     |     |     |     |     |     |     |     |     |     |
|  8 | HPL 19 - King Ranch   | 23600.0 | 0.0      |  23600 | 22880.0 | 1500.0   |  24380 |               |     |     |     |     |     |     |     |     |     |     |
|  9 | HPL 3 - A/S South     | 48212.0 | 159017.0 | 207229 | 10000.0 | 301.0    |  10301 | 207229.0      |     |     |     |     |     |     |     |     |     |     |
| 10 | HPL 4 - A/S Central   | 25700.0 | 23030.0  |  48730 | 17000.0 | 177855.0 | 194855 | -194855.0     |     |     |     |     |     |     |     |     |     |     |
| 11 | HPL 5 - Edna          | 78000.0 | 167181.0 | 245181 | 22500.0 | 68249.0  |  90749 |               |     |     |     |     |     |     |     |     |     |     |
| 12 | HPL 6 - Texas City    | 1555.0  | 7671.0   |   9226 | 26098.0 | 148689.0 | 174787 | -174787.0     |     |     |     |     |     |     |     |     |     |     |
| 13 | HPL 10 - Ship Channel |         | 48316.0  |  48316 | 36000.0 | 500848.0 | 536848 | -536848.0     |     |     |     |     |     |     |     |     |     |     |
| 14 | HPL 15 - Katy         | 11550.0 | 123348.0 | 134898 |         | 59472.0  |  59472 | [Target Cell] |     |     |     |     |     |     |     |     |     |     |
| 15 | HPL 16 - West Loop    | 10236.0 | 92500.0  | 102736 |         | 34001.0  |  34001 | 102736.0      |     |     |     |     |     |     |     |     |     |     |
| 16 | HPL 17 - East Loop    |         | 5000.0   |   5000 | 5000.0  | 97260.0  | 102260 |               |     |     |     |     |     |     |     |     |     |     |
| 17 | HPL 13 - Mid Texas    |         |          |      0 |         |          |      0 | 0.0           |     |     |     |     |     |     |     |     |     |     |
| 18 | HPL 23 - Bammel       |         | 68799.0  |  68799 | 7095.0  | 130085.0 | 137180 |               |     |     |     |     |     |     |     |     |     |     |
| 19 | HPL 7 - A/S East      |         | 115.0    |    115 |         | 48.0     |     48 |               |     |     |     |     |     |     |     |     |     |     |
| 20 | HPL 8 - East Texas    | 1130.0  | 254946.0 | 256076 | 99237.0 | 150120.0 | 249357 |               |     |     |     |     |     |     |     |     |     |     |
| 21 | HPL 9 - Freeport      |         | 5713.0   |   5713 | 20708.0 | 15351.0  |  36059 |               |     |     |     |     |     |     |     |     |     |     |
| 22 | HPL 11 - Corpus       | 1121.0  | 1118.0   |   2239 | 73000.0 | 40063.0  | 113063 | -113063.0     |     |     |     |     |     |     |     |     |     |     |
| 23 | HPL 12 - Valley       |         | 15105.0  |  15105 |         | 11294.0  |  11294 |               |     |     |     |     |     |     |     |     |     |     |
| 24 | HPL 20 - Hardin       |         | 1.0      |      1 | 2249.0  | 1501.0   |   3750 |               |     |     |     |     |     |     |     |     |     |     |



min_row: 4
max_row: 24
min_col: 1
max_col: 18
target_cell_row_idx: 14
target_cell_col_idx: 8
target_cell_value: 134898.0
formula: =+D14