Task: Table-QA (source dataset: TableBench)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
|   Works no. |   Year built |   NGR no. |   SAR no. | SAR Class   |
|------------:|-------------:|----------:|----------:|:------------|
|       18829 |         1909 |       330 |      1446 | 3R          |
|       18830 |         1909 |       331 |      1447 | 3R          |
|       18831 |         1909 |       332 |      1448 | 3R          |
|       18832 |         1909 |       333 |      1449 | 3R          |
|       18833 |         1909 |       334 |      1450 | 3R          |
|       19217 |         1910 |       345 |      1451 | 3R          |
|       19218 |         1910 |       346 |      1452 | 3R          |
|       19219 |         1910 |       347 |      1453 | 3R          |
|       19220 |         1910 |       348 |      1454 | 3R          |
|       19221 |         1910 |       349 |      1455 | 3R          |
|       19222 |         1910 |       350 |      1456 | 3R          |
|       19223 |         1910 |       351 |      1457 | 3           |
|       19224 |         1910 |       352 |      1458 | 3R          |
|       19225 |         1910 |       353 |      1459 | 3R          |
|       19226 |         1910 |       354 |      1460 | 3R          |
|       19227 |         1910 |       355 |      1461 | 3R          |
|       19228 |         1910 |       356 |      1462 | 3R          |
|       19229 |         1910 |       357 |      1463 | 3R          |
|       19230 |         1910 |       358 |      1464 | 3R          |
|       19231 |         1910 |       359 |      1465 | 3R          |
|       19232 |         1910 |       360 |      1466 | 3R          |
|       19233 |         1910 |       361 |      1467 | 3R          |
|       19234 |         1910 |       362 |      1468 | 3R          |
|       19235 |         1910 |       363 |      1469 | 3R          |
|       19236 |         1910 |       364 |      1470 | 3R          |
|       19237 |         1910 |       365 |      1471 | 3R          |
|       19238 |         1910 |       366 |      1472 | 3R          |
|       19239 |         1910 |       367 |      1473 | 3R          |
|       19240 |         1910 |       368 |      1474 | 3R          |
|       19241 |         1910 |       369 |      1475 | 3R          |

Question:
What is the total number of locomotives built in the year 1909?


id: cc21a2e2ee8475bf4f2f7e6bc0021832
qtype: NumericalReasoning
label: 5