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Another example of Amazon’s use of human knowledge to improve Alexa is a program unveiled last year called Alexa Answers.? A select group of customers invited to the program can go to a website to see a list of questions Alexa can’t answer today and provide information to fill in the blanks.

Antigone Davis, global head of safety at Facebook, said in a post on the company's official website that Facebook is introducing new features that can detect and prevent unwanted contact like friend requests and messages from blocked users who may make a second attempt by setting up a new account.

Any single coal mining company must have an annual capacity of over 3 million tons by 2020. Open-pit coal mines must have annual production capacity of no less than 5 million tonnes after mergers.

Any person who fails to comply with the court order may be held in contempt of court and is liable for imprisonment or a fine.

Apart from the 0 million original investment, according to FF, Evergrande agreed in July to make further payments earlier than originally agreed, including 0 million of the rest .2 billion, this year.