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:
|   brno | name                                     | builder   | whenbuilt    | withdrawn      |
|-------:|:-----------------------------------------|:----------|:-------------|:---------------|
|  34071 | 601 squadron                             | brighton  | 1948         | 1967           |
|  34072 | 257 squadron                             | brighton  | 1948         | 1964           |
|  34073 | 249 squadron                             | brighton  | 1948         | 1964           |
|  34074 | 46 squadron                              | brighton  | 1948         | 1963           |
|  34075 | 264 squadron                             | brighton  | 1948         | 1964           |
|  34076 | 41 squadron                              | brighton  | 1948         | 1966           |
|  34077 | 603 squadron                             | brighton  | 1948         | 1967           |
|  34078 | 222 squadron                             | brighton  | 1948         | 1964           |
|  34079 | 141 squadron                             | brighton  | 1948         | 1966           |
|  34080 | 74 squadron                              | brighton  | 1948         | 1964           |
|  34081 | 92 squadron                              | brighton  | 1948         | 1964           |
|  34082 | 615 squadron                             | brighton  | 1948         | 1966           |
|  34083 | 605 squadron                             | brighton  | 1948         | 1964           |
|  34084 | 253 squadron                             | brighton  | 1948         | 1965           |
|  34085 | 501 squadron                             | eastleigh | 1948         | 1965           |
|  34086 | 219 squadron                             | brighton  | 1948         | 1966           |
|  34087 | 145 squadron                             | eastleigh | 1948         | 1967           |
|  34088 | 213 squadron                             | brighton  | 1948         | 1967           |
|  34089 | 602 squadron                             | eastleigh | 1948         | 1967           |
|  34090 | sir eustace missenden , southern railway | brighton  | 1949         | 1967           |
|  34091 | weymouth                                 | brighton  | 1949         | 1964           |
|  34092 | city of wells                            | brighton  | 1949         | 1964           |
|  34093 | saunton                                  | brighton  | 1949         | 1967           |
|  34094 | mortehoe                                 | brighton  | 1949         | 1964           |
|  34095 | brentor                                  | eastleigh | 1949         | 1967           |
|  34096 | trevone                                  | brighton  | 1949         | 1964           |
|  34097 | holsworthy                               | brighton  | 1949         | 1967           |
|  34098 | templecombe                              | brighton  | 1949         | 1967           |
|  34099 | lynmouth                                 | brighton  | 1949         | 1964           |
|  34100 | appledore                                | brighton  | 1949         | 1967           |
|  34101 | hartland                                 | eastleigh | 1950         | 1966           |
|  34102 | lapford                                  | eastleigh | 1950         | 1967           |
|  34103 | calstock                                 | brighton  | 1950         | 1965           |
|  34104 | bere alston                              | eastleigh | 1950         | 1967           |
|  34105 | swanage                                  | brighton  | 1950         | 1964           |
|  34106 | lydford                                  | brighton  | march 1950   | september 1964 |
|  34107 | blandford forum                          | brighton  | april 1950   | september 1964 |
|  34108 | wincanton                                | brighton  | april 1950   | june 1967      |
|  34109 | sir trafford leigh - mallory             | brighton  | may 1950     | september 1964 |
|  34110 | 66 squadron                              | brighton  | january 1951 | november 1963  |

Question:
How many squadrons were built by 'brighton' in 1948?


id: 79c7100e623e490d4aabd5361cd50c5b
qtype: NumericalReasoning
label: 16