Task: Table-QA (source dataset: FinQA)

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:
| Unnamed: 0                                  |   mainline operations |   wholly-owned regional carriers |   total |
|:--------------------------------------------|----------------------:|---------------------------------:|--------:|
| pilots and flight crew training instructors |                 13400 |                             3400 |   16800 |
| flight attendants                           |                 24700 |                             2200 |   26900 |
| maintenance personnel                       |                 14900 |                             2000 |   16900 |
| fleet service personnel                     |                 16600 |                             3500 |   20100 |
| passenger service personnel                 |                 15900 |                             7100 |   23000 |
| administrative and other                    |                 16000 |                             2600 |   18600 |
| total                                       |                101500 |                            20800 |  122300 |

Question:
what portion of the total full-time employees of mainline operations are pilots and flight crew instructors?


pre_text: table of contents configuration , amenities provided to passengers , loyalty programs , the automation of travel agent reservation systems , onboard products , markets served and other services .
we compete with both major network airlines and low-cost carriers throughout our network .
international in addition to our extensive domestic service , we provide international service to canada , central and south america , asia , europe , australia and new zealand .
in providing international air transportation , we compete with u.s .
airlines , foreign investor-owned airlines and foreign state- owned or state-affiliated airlines , including carriers based in the middle east , the three largest of which we believe benefit from significant government subsidies .
in order to increase our ability to compete for international air transportation service , which is subject to extensive government regulation , u.s .
and foreign carriers have entered into marketing relationships , alliances , cooperation agreements and jbas to exchange traffic between each other 2019s flights and route networks .
see 201cticket distribution and marketing agreements 201d above for further discussion .
employees and labor relations the airline business is labor intensive .
in 2016 , mainline and regional salaries , wages and benefits were our largest expense and represented approximately 35% ( 35 % ) of our total operating expenses .
labor relations in the air transportation industry are regulated under the railway labor act ( rla ) , which vests in the national mediation board ( nmb ) certain functions with respect to disputes between airlines and labor unions relating to union representation and collective bargaining agreements ( cbas ) .
when an rla cba becomes amendable , if either party to the agreement wishes to modify its terms , it must notify the other party in the manner prescribed under the rla and as agreed by the parties .
under the rla , the parties must meet for direct negotiations , and , if no agreement is reached , either party may request the nmb to appoint a federal mediator .
the rla prescribes no set timetable for the direct negotiation and mediation process .
it is not unusual for those processes to last for many months and even for several years .
if no agreement is reached in mediation , the nmb in its discretion may declare under the rla at some time that an impasse exists , and if an impasse is declared , the nmb proffers binding arbitration to the parties .
either party may decline to submit to binding arbitration .
if arbitration is rejected by either party , an initial 30-day 201ccooling off 201d period commences .
following the conclusion of that 30-day 201ccooling off 201d period , if no agreement has been reached , 201cself-help 201d ( as described below ) can begin unless a presidential emergency board ( peb ) is established .
a peb examines the parties 2019 positions and recommends a solution .
the peb process lasts for 30 days and ( if no resolution is reached ) is followed by another 201ccooling off 201d period of 30 days .
at the end of a 201ccooling off 201d period ( unless an agreement is reached , a peb is established or action is taken by congress ) , the labor organization may exercise 201cself-help , 201d such as a strike , and the airline may resort to its own 201cself-help , 201d including the imposition of any or all of its proposed amendments to the cba and the hiring of new employees to replace any striking workers .
the table below presents our approximate number of active full-time equivalent employees as of december 31 , 2016 .
mainline operations wholly-owned regional carriers total .
post_text: .
label: 0.13202
qa: answer: 13.2%
ann_table_rows: 1
7
steps: op: divide1-1
arg1: 13400
arg2: 101500
res: 13.2%
program: divide(13400, 101500)
gold_inds: table_1: the pilots and flight crew training instructors of mainline operations is 13400 ; the pilots and flight crew training instructors of wholly-owned regional carriers is 3400 ; the pilots and flight crew training instructors of total is 16800 ;
table_7: the total of mainline operations is 101500 ; the total of wholly-owned regional carriers is 20800 ; the total of total is 122300 ;
exe_ans: 0.13202
tfidftopn: table_2: The flight attendants of mainline operations is 24700 ; The flight attendants of wholly-owned regional carriers is 2200 ; The flight attendants of total is 26900 ;
program_re: divide(13400, 101500)
model_input: table_1
the pilots and flight crew training instructors of mainline operations is 13400 ; the pilots and flight crew training instructors of wholly-owned regional carriers is 3400 ; the pilots and flight crew training instructors of total is 16800 ;
table_2
the flight attendants of mainline operations is 24700 ; the flight attendants of wholly-owned regional carriers is 2200 ; the flight attendants of total is 26900 ;
table_7
the total of mainline operations is 101500 ; the total of wholly-owned regional carriers is 20800 ; the total of total is 122300 ;