> Why, then, do they need to mine utterances with Bing 411? I think the point of the article is that they don't need to mine utterences with Bing 411, and that

> Why, then, do they need to mine utterances with Bing 411? I think the point of the article is that they don't need to mine utterences with Bing 411, and that they merely did the service to compete with Google, without knowing why Google made the service in the first place.