[{'role': 'user', 'content': 'Analyze the following clause from a privacy policy and determine if it\'s fair or unfair. Also identify any privacy practices mentioned: Facebook plugins Wooga uses social plugins, e.g. the "like" button, from the social networking site facebook.com. These plugins are operated by Facebook Inc., 1601 S. California Ave, Palo Alto, CA 94304, USA ("Facebook"). The plugins can be identified from one of the Facebook logos (a white "f" on a blue tile or a "thumbs up" sign), or we have specially marked them "Facebook Social Plugin". The list of Facebook Social Plugins and what they look like can be viewed on Facebook at developers.facebook.com/plugins.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]