Question: Which is the closest county near the New Forest where Ocknell Plain can be found?

full_context: Document 1: Ocknell Plain: Ocknell Plain can be found in the New Forest near Southampton, England.
Document 2: Balmer Lawn: Balmer Lawn is the name of a large New Forest Lawn located in an amphitheatre of woodland in the New Forest National Park in Hampshire, England. It is just north of the village of Brockenhurst.The lawn comprises about 500 acre of open low land grazing frequented by Forest stock. The name of the area comes from a distortion of the historical name Palmers Water - reference “Comyn’s New Forest” of 1817. Palmers Water was in fact a small settlement which has long since disappeared but was located to east of the ford on the Brockenhurst to Beaulieu road. The water being the Lymington River which separates Brockenhurst and the small settlement of Balmerlawn on the south side of the grazing lawn. The lawn of course remained and over time Palmers became Balmer, perhaps aided by the local dialect.
Document 3: Bassett, Southampton: Bassett is a suburb and electoral ward of the City of Southampton, England. The suburb lies to the north of the city centre and is largely residential, including the University of Southampton's Glen Eyre Halls of residence complex (including Chamberlain), which houses around 2,100 students. Bassett gives its name to part of the A33 arterial road which links the city centre to the M3, described by Pevsner & Lloyd as "part of the splendid tree-lined route into Southampton from Winchester, London and the north". The highest point in the City of Southampton (its "county top") lies on Bassett Avenue at a height of 82 m above sea level.
Document 4: South East Dorset conurbation: The South east Dorset conurbation (also known as the South Dorset conurbation, Poole-Bournemouth urban area and Bournemouth urban area) is a multi-centred conurbation on the south coast of Dorset in England. The area is rapidly becoming an amalgamation with the area of South West Hampshire immediately on the fringe of the newly formed New Forest National Park. The main population centres are Bournemouth, Poole and Christchurch; however, the urbanised area spreads as far east as Barton on Sea in Hampshire. There are a number of satellite towns peripheral to these main urban centres. In clockwise rotation these include: Wareham, Upton, Wimborne, Ferndown, Verwood and Ringwood (Hampshire). The urban area is generally surrounded by a green belt.
Document 5: New Forest Show: The New Forest and Hampshire County Show, or more commonly known as the New Forest Show, is an annual agricultural show event held for three days at the end of July in New Park, near Brockenhurst in Hampshire, southern England, UK. The first New Forest Show was held in 1921, and in 2006, it celebrated its 80th show.
Document 6: Ashurst, Hampshire: Ashurst is a village in the New Forest district of Hampshire, England, which together with Colbury hamlet makes the parish of Ashurst and Colbury. Ashurst is on the A35 road near the Southampton conurbation. According to the 2001 census the parish had a population of 2,011, increasing to 2,093 at the 2011 Census. The parish is on the edge of the designated New Forest National Park area. The village has a campsite, some shops and a railway station. The parish is bounded to the west by Netley Marsh parish and the Bartley Water, to the north by the A326 road and Totton and Eling, and to the south by Denny Lodge parish in the New Forest.
Document 7: History of the Port of Southampton: The Port of Southampton is a major passenger and cargo port located in the central part of the south coast of England. It has been an important port since the Roman occupation of Britain nearly two thousand years ago, and has a multifaceted history. From the Middle Ages to the end of the 20th century, it was a centre for naval shipbuilding and a departure point for soldiers going to war. The port also played a role in the development of hovercraft, flying boat services, seaplanes and the Spitfire fighter plane. Before the advent of jet travel, Southampton was Britain's gateway to the world. The port also played a minor role in the history of Britain's canals.
Document 8: Avon Water, Hampshire: Avon Water is a small river in the south of England, flowing through the New Forest in Hampshire to the sea. It should not be confused with the larger River Avon, which also flows through Hampshire.
Document 9: Southampton Tunnel: Southampton Civic Centre Tunnel is a railway tunnel beneath the Civic Centre in the centre of the Hampshire city of Southampton, in England. Opening in August 1847, its construction linked the stations of Southampton Terminus and Southampton West End (later moved and now known as Southampton Central). The construction of the Southampton and Dorchester Railway linked London through Southampton to towns further west, such as Poole and Dorchester. The through link also accelerated the expansion of Bournemouth.
Document 10: Southampton: Southampton( ) is the largest city in the ceremonial county of Hampshire, England. It is 75 mi south-west of London and 19 mi north-west of Portsmouth. Southampton is a major port and the closest city to the New Forest. It lies at the northernmost point of Southampton Water at the confluence of the Rivers Test and Itchen, with the River Hamble joining to the south of the urban area. The city, which is a unitary authority, has an estimated population of 253,651. The city's name is sometimes abbreviated in writing to "So'ton" or "Soton", and a resident of Southampton is called a .
Document 11: Ashley, New Forest: Ashley is a village located in the southwest of Hampshire, England. It lies on the eastern outskirts of New Milton in the New Forest district, and is two miles (3 km) inland from the sea. Its history dates back to the Domesday book of 1086, when two estates were recorded. In the 15th century much of Ashley merged with a neighbouring manor, and the estate became known as Ashley Arnewood. As a village, Ashley began to develop in the 19th century when a church and a school were built. Most of the current village was built in the 20th century, and today Ashley is effectively a suburb of New Milton.
Document 12: Northam, Southampton: Northam is a suburb of Southampton in Hampshire. On the West bank of the River Itchen, it shares borders with St Mary's, Bitterne and Bevois Valley. Beside the border with St Mary's is the Chapel area, which has been home to some recent apartment building developments in Northam. The A3024 road runs through the suburb and crosses the Northam Bridge, which links Northam with Bitterne via Bitterne Manor. Although St Mary's Stadium takes its name from the neighbouring St Mary's, the stadium itself is in Northam, and home to Southampton F.C..
Document 13: Sway, Hampshire: Sway is a village and Civil parish in Hampshire in the New Forest national park in England. The civil parish was formed in 1879, when lands were taken from the extensive parish of Boldre. The village has shops and pubs, and a railway station on the main line from Weymouth and Bournemouth to Southampton and London Waterloo. Sway is on the southern edge of the woodland and heathland of the New Forest. Much of the children's novel "The Children of the New Forest" is set in the countryside surrounding Sway.
Document 14: Wellow, Hampshire: Wellow is a village in Hampshire, England that falls within the Test Valley district. The village lies just outside the New Forest across the main A36 road which runs from the M27 motorway to Salisbury. The nearest town is Romsey (6 km) and the nearest city Southampton (13 km). The village has a population of just over 3,000.
Document 15: Sopley: Sopley is a village and civil parish situated in the New Forest National Park of Hampshire, England. It lies on the old main road from Christchurch to Ringwood, on the east bank of the River Avon. The Parish extends east as far as Thorny Hill and borders the parishes of Bransgore and Burton to the south and west respectively. It includes the hamlets of Shirley, Avon and Ripley. The area is mainly rural with less than 300 dwellings. The village is situated on the fringes of the New Forest, just outside the New Forest National Park but within the perambulation boundary of the forest. Most of the buildings date back to the 19th century but there are more modern houses to the north. It is also home to Moorlands College, one of the largest evangelical theological seminaries in the country. The college was built on the site of the old manor house which was demolished in 1988.
ground_truth: Hampshire