Refer to the input text as context and select the correct relationship between 'Bing' and 'Microsoft' from the available options.
Options: stock exchange, employer, operator, product/material produced

News releases also appear on global portals and search engines such as AOL, Bing news from Microsoft (NASDAQ: MSFT), Google (NASDAQ: GOOG), Yahoo search (NASDAQ: YHOO) just to name a few.
operator