user
Instruction
Answer the question based on the provided table.


Table
Table Title: Sleaford railway station
Table Content:
| Departure | Going to | Calling at | Arrival | Operator |
| --- | --- | --- | --- | --- |
| 07.00 | Boston | Heckington, Swineshead, Hubbert's Bridge | 07.32 | GNR |
| 08.16 | Lincoln | Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington | 09.05 | GN&GE |
| 08.16 | March | Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne | 09.38 | GN&GE |
| 08.17 | Grantham | Rauceby, Ancaster, Barkston | 08.45 | GNR |
| 08.20 | Bourne | Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road | 09.00 | GNR |
| 09.50 | Grantham | Rauceby, Ancaster, Honington | 10.20 | GNR |
| 10.02 | Boston | Heckington, Swineshead, Hubbert's Bridge | 10.33 | GNR |
| 10.05 | Bourne | Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road | 10.41 | GNR |
| 10.48 | March | Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne | 12.12 | GN&GE |
| 11.01 | Skegness / Mablethorpe | Boston, Firsby: Part to Skegness. Part to Willoughby, Sutton-on-Sea, Mablethorpe | 12.08 / 12.20 | GNR |
| 11.34 | Boston | Heckington, Swineshead, Hubbert's Bridge | 12.07 | GNR |
| 11.34 | Grantham | Rauceby, Ancaster, Barkston, Honington | 12.05 | GNR |
| 11.37 | Doncaster | Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington, Lincoln, Saxilby, Stow Park, Lea, Gainsborough, Beckingham, Walkeringham, Misterton, Haxey & Epworth, Park Drain, Finningley | 09.05 | GN&GE |
| 12.43 | Lowestoft | Spalding, March, Shippea Hill, Brandon, Thetford, Attleborough, Wymondham, Norwich, Oulton Broad | 16.10 | GN&GE |
| 13.48 | Bourne | Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road | 14.24 | GNR |
| 13.48 | Grantham | Rauceby, Ancaster, Honington | 14.21 | GNR |
| 13.49 | March | Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne | 15.23 | GN&GE |
| 14.00 | York | Lincoln, Gainsborough, Doncaster, Selby | 16.33 | GN&GE |
| 16.19 | Boston | Heckington, Swineshead, Hubbert's Bridge | 16.51 | GNR |
| 16.25 | Bourne | Aswarby & Scredington, Billingborough & Horbling, Rippingale, Morton Road | 17.00 | GNR |
| 16.48 | Lincoln | Ruskington, Digby, Scopwick & Timberland, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington | 17.37 | GN&GE |
| 17.00 | March | Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne | 18.27 | GN&GE |
| 17.55 | Nottingham Victoria |  | 18.46 | GNR |
| 18.51 | Grantham | Rauceby, Ancaster, Honington, Barkston | 19.28 | GNR |
| 18.58 | March | Helpringham, Donington Road, Gosberton, Pinckbeck, Spalding, Cowbit, Postland, French Drove, Murrow, Guyhirne | 20.20 | GN&GE |
| 19.22 | Boston | Heckington, Swineshead, Hubbert's Bridge | 19.55 | GNR |
| 19.46 | Doncaster | Blankney & Metheringham, Lincoln, Gainsborough | 21.22 | GN&GE |
| 21.54 | Doncaster | Ruskington, Digby, Blankney & Metheringham, Nocton & Dunston, Potterhanworth, Branston & Heighington, Lincoln, Saxilby, Gainsborough, Misterton | 23.45 | GN&GE |
| 22.04 | Grantham |  | 22.27 | GNR |


Question
which operator runs a higher number of routes?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["GNR"]