sentences:  After Google Pinyin was initially released in April 2007, it was soon discovered that Google Pinyin's dictionary database contained employee names of Sogou Pinyin, an indication that the dictionary was taken from Sogou, one of Google's competitors in the Chinese Internet market.On April 8, 2007, Google admitted that they used "non-Google database resources".Shortly thereafter, a new version of Google Pinyin was released which no longer appeared to be based on Sogou's database.