Question: Stainby is a hamlet in the South Kesteven district of Lincolnshire, and is situated 2 mi west from the A1 road, the A1 is the longest numbered road in which country?

full_context: Document 1: Swayfield: Swayfield is a village and civil parish in the South Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 316. It is situated just over 3 mi east from the A1 road, 9 mi south-east from Grantham and 10 mi north from Stamford. It has approximately 138 houses.
Document 2: Bracebridge Heath: Bracebridge Heath is a commuter village located approximately 2 mi south from the city and county town of Lincoln, England. It lies at the junction of two major roads the A15 to Sleaford and the A607 to Grantham, and was (until modern systems of local government were introduced in the 19th century) part of the Boothby Graffoe Wapentake. The village sits on top of Lincoln Cliff, overlooking Lincoln and the valley of the River Witham. The Viking Way runs along the cliff top, a 147 mi long footpath, which runs from the Humber Bridge to Oakham. Its population at the 2001 census was 4,530, increasing to 5,656 at the 2011 census.
Document 3: Gunby, South Kesteven: Gunby is a hamlet in the South Kesteven district of Lincolnshire, England. It is situated close to the borders with Leicestershire and Rutland, and 9 mi south from Grantham, and 2 mi west from the A1 road. It is in the civil parish of Gunby and Stainby.
Document 4: A1101 road: The A1101 is the lowest road in Great Britain ; along its 53 mi approx. stretch it rarely rises above sea level. The road runs from Bury St. Edmunds north west to Littleport where it disappears for approximately 2 mi , it then re-appears on the other side of the A10 heading north through Wisbech and to its end at the A17 in Long Sutton. The A1101's route takes it across the Fens in Lincolnshire and Norfolk, a famously low-lying area to Suffolk through Cambridgeshire. It is the main road for access between Lincolnshire and the Fenlands. The stretch between Wisbech and Long Sutton was previously designated the A150.
Document 5: A17 road (England): The A17 road is a road linking Newark-on-Trent in Nottinghamshire, England, to King's Lynn in Norfolk. It stretches for a distance of 62 miles travelling across the flat Fen landscapes of southern Lincolnshire and western Norfolk.
Document 6: Edinburgh: Edinburgh ( or ; Scottish Gaelic: "Dùn Èideann" ] ) is the capital city of Scotland and one of its 32 council areas. It is located in Lothian on the Firth of Forth's southern shore.
Document 7: Stainby: Stainby is a hamlet in the South Kesteven district of Lincolnshire, England. It is situated 2 mi west from the A1 road, 1.5 mi east from the Viking Way and the Leicestershire border, and 8 mi south from Grantham.
Document 8: Great North Road (Great Britain): The Great North Road was the main highway between London and Scotland. It became a coaching route used by mail coaches travelling between London, York and Edinburgh. The modern A1 mainly parallels the route of the Great North Road. Coaching inns, many of which survive, were staging posts providing accommodation, stabling for horses and replacement mounts. Nowadays virtually no surviving coaching inns can be seen while driving on the A1, because the modern route bypasses the towns in which the inns are found.
Document 9: South Ferriby: South Ferriby is a village in North Lincolnshire, England. It is situated on the south bank of the Humber Estuary and 3 mi west from the Humber Bridge. North Ferriby is directly opposite on the Estuary’s north bank. Village population was 651 in 2011.
Document 10: Aisby, West Lindsey: Aisby is a hamlet in the civil parish of Corringham, in the West Lindsey district of Lincolnshire, England. It is situated just over 1 mi north from the A631 road and Corringham, 4 mi north-east from Gainsborough, and 5 mi south-east from Kirton in Lindsey.
Document 11: A1 road (Great Britain): The A1 is the longest numbered road in the UK, at 410 mi . It connects London, the capital of England and the United Kingdom, with Edinburgh, the capital of Scotland. It passes through or near North London, Hatfield, Welwyn Garden City, Stevenage, Baldock, Letchworth Garden City, Huntingdon, Peterborough, Grantham, Newark-on-Trent, Retford, Doncaster, Leeds, Harrogate, York, Ripon, Darlington, Durham, Sunderland, Gateshead, Newcastle upon Tyne, Alnwick and Berwick-upon-Tweed.
Document 12: A1 motorway (Romania): The A1 motorway (Romanian: "Autostrada A1" ) is a partially built motorway in Romania, planned to connect Bucharest with the Banat and Crișana regions in the western part of the country. When completed it will be 580 kilometers long and it will span the country on the approximative south-east to north west direction. The motorway starts in the western part of Bucharest and connects the following major cities: Pitești, Sibiu, Deva, Timișoara, Arad, reaching the Hungarian M43 motorway near Nădlac. As the motorway is built along the Trans-European Transport Networks Rhine-Danube Corridor the construction receives 85% funding from the European Union.
Document 13: Stroxton: Stroxton is a village in the South Kesteven district of Lincolnshire, England. It is situated 3 mi south from the centre of Grantham and about 1 mi north-west from Great Ponton and the A1 road.
Document 14: European route E16: European route E 16 is the designation of a main west-east road through Northern Ireland, Scotland, Norway and Sweden, from Derry to Gävle, via Belfast, Glasgow, Edinburgh, previously by ferry to Bergen, Voss, through the Gudvanga Tunnel and the Lærdal Tunnel (the world's longest road tunnel), Lærdal, over Filefjell to Fagernes, Hønefoss, Gardermoen and Kongsvinger. In Sweden it passes Malung, Falun and ends in Gävle.
Document 15: London: London is the capital and most populous city of England and the United Kingdom.
ground_truth: UK