Question: Johnston senior of Wellington was the original purchaser of which large property in Australia or New Zealand whose main activity is the raising of sheep for their wool and meat?

Context paragraphs:
Poll Dorset: The Poll Dorset is a short wool, meat producing sheep that was developed in Australia between 1937 and 1954 with the aim of breeding a true Dorset type sheep without horns.  The poll gene was introduced into Dorset Horn flocks from two other polled breeds and following a strict back-mating programme achieved close to 100% of Dorset Horn blood.  Its main distinguishing features are its hornless appearance, long, lean square body set on short legs, pink skin and 'spongy' short-stapled wool.  The Poll Dorset produces a fleece of white, dense downs type wool of 30 microns fibre diameter and it has a white wool-free face.  The breed was developed at a property called "Valmore" in Whitemore, Tasmania, a noted centre for pedigree livestock stud farms.  The Poll Dorset resulted from the introduction of Corriedale and Ryeland blood into the Dorset Horn.

Kenneth Young (New Zealand composer): Kenneth Young (born 11 November 1955, Invercargill, New Zealand) is a composer, conductor, radio presenter and lecturer in composition, conducting and orchestration at the New Zealand School of Music, Massey University and Victoria University of Wellington.  As a composer, Young has had works commissioned by New Zealand and Australian orchestras and arts organisations including the New Zealand Symphony Orchestra, Auckland Philharmonia Orchestra, Tasmanian Symphony Orchestra "New Zealand International Arts Festival" and "Chamber Music New Zealand".  He works as a freelance composer and is fully represented by "SOUNZ: The Centre for New Zealand Music".  In 1976, Young became the principal tuba for the New Zealand Symphony Orchestra and first the orchestra in 1985 becoming "Conductor in Residence" in 1993.  In 2001 resigned from the orchestra to become a full-time conductor, composer and recording artist for orchestras in New Zealand and Australia, as well as engagements in Japan and the United Kingdom.  He is well known for his interpretation of Romantic, 20th Century, New Zealand and Australian orchestral repertoire and in 2012 conducted both the winning album, "Angel at Ahipara" and finalist album, "Releasing the Angel", for "Best Classical Album" at the New Zealand Music Awards.  Young has been recorded by EMI, Atoll Records, Continuum, Trust Records, ABC Classics and Naxos and is a frequent presenter on "RESOUND", Radio New Zealand Concert introducing and contextualising work from the RNZ archives.  In 2004 was awarded the "Lilburn Trust Citation" in Recognition of Outstanding Services to New Zealand Music.

Sheep station: A sheep station is a large property (station, the equivalent of a ranch) in Australia or New Zealand whose main activity is the raising of sheep for their wool and meat.  In Australia, sheep stations are usually in the south-east or south-west of the country.  In New Zealand the Merinos are usually in the high country of the South Island.  These properties may be thousands of square kilometres in size and run low stocking rates to be able to sustainably provide enough feed and water for the stock.

Polwarth (sheep): Polwarth is a breed of sheep that was developed in Victoria (Australia) during 1880.  They were of one-quarter Lincoln and three-quarters Merino bloodlines.  They are large, predominantly polled sheep with long, soft, quite fine wool and produce good meat carcasses.  They were developed in an attempt to extend the grazing territory of sheep because the Merino was found lacking in hardiness in this respect.  A dual-purpose (meat and wool) breed with a major emphasis on wool production.

Drysdale sheep: The Drysdale breed of sheep originated in New Zealand and is raised primarily for wool.  Dr. Francis Dry in 1931 noticed a genetic freak, a Romney ram with a high percentage of very coarse wool.  Crossing two Romneys and Cheviots resulted in a sheep with a lot of coarse, Wool|fleece]] is about 6 kg with a 40 microns fibre diameter and a staple of 200 to .  The coarse wool gene causes both male and female Drysdales to be horned.  The male's horn resembles a Wiltshire ram's horn whereas the ewes horns are very small- usually only 8 to in length.  weight 60-70 kgs live weight

Corriedale: Corriedale sheep are a dual purpose breed, meaning they are used both in the production of wool and meat.  The Corriedale is the oldest of all the crossbred breeds, a Merino-Lincoln cross developed almost simultaneously in Australia and New Zealand and first brought to the United States in 1914.  The Corriedale is internationally farmed, in Australia, New Zealand, the United States of America, Southern Brazil, Uruguay and Patagonia.  Corriedales are one of the most popular sheep breeds in Uruguay.  On the Falkland Islands, Polwarth and Corriedale form the main sheep breeds.

Silver Fern Farms: Silver Fern Farms Limited is a New Zealand multinational meat co-operative owned by 16,000 New Zealand sheep, cattle and deer farmers.  The company is New Zealand’s largest livestock processing and marketing company.  It has investments in manufacturing, meat processing, transport of live stock, export logistics and meat marketing, with associated companies including NZ Lamb Group, New Zealand and Australian Lamb Company Limited, The Lamb Co-Operative, Inc, Robotic Technologies Limited, Livestock Logistics Nationwide Limited.  Farm Brands Limited, Kotahi Logistics LP, Ovine Automation Limited, and Alpine Origin Merino Limited.

Cattle station: In Australia, a cattle station is a large farm (station, the equivalent of an American ranch), whose main activity is the rearing of cattle; the owner of a cattle station is called a "grazier".  The largest cattle station in the world is Anna Creek Station in South Australia, Australia.

Oruawharo Homestead: Oruawharo Homestead is an historic homestead built in 1879 in Takapau, Central Hawke's Bay, New Zealand.  It was designed by Wellington architect Charles Tringham in the Italianate style and built from native timbers for Sydney and Sophia Johnston by Sydney's father, the politician and merchant John Johnston.  Johnston senior of Wellington was the original purchaser of the run in the 1850s.  Sydney Johnston had the nearby Takapau township surveyed in 1876.

Texel sheep: The Texel is a breed of domestic sheep originally from the island of Texel in the Netherlands.  It is now a popular lean meat sheep in the United States, Australia, New Zealand, Uruguay and Europe.  The Texel is a heavily muscled sheep.  It produces a lean meat carcass and will pass on this quality to crossbred progeny.  The wool is around 32 micrometres and is mostly used for hosiery yarns and knitting wools.

Supporting paragraphs: Oruawharo Homestead Sheep station
Answer: sheep station