premise: Yandex is a Russian website.
hypothesis: Yandex ( [ ` yʌndɛks ] Яндекс ) is a Russian multinational technology company specializing in Internet-related services and products . Yandex operates the largest search engine in Russia with about 65 % market share in that country . It opened the first sales office outside the CIS countries in Lucerne , Switzerland in 2012 for its European advertising clients , and the second one in Shanghai , China in 2015 for Chinese companies that work on the Russian language market . Yandex Browser is a freeware web browser developed by the Russian web search corporation Yandex that uses the Blink web browser engine and is based on the Chromium open source project .