claim: Mikhail Prokhorov is the former Vice-President of Onexim Group.
evidence: The Rakaia River is in the Canterbury Plains in New Zealand 's South Island .. Canterbury Plains. Canterbury Plains. New Zealand. New Zealand. South Island. South Island. The Rakaia River is one of the largest braided rivers in New Zealand .. New Zealand. New Zealand. The Rakaia River has a mean flow of 203 m3 / s and a mean annual seven-day low flow of 87 m3 / s .. In the 1850s , European settlers named it the Cholmondeley River , but this name lapsed into disuse .