[{'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: subject to your prior indication of consent, we may also use the email address that you provide when setting up a username to send you marketing material. At any time you may choose not to receive such material by:- (i) changing the email preferences in your Account accessed via the Website; or (ii) clicking on the "Unsubscribe" link in the e-mail messages that we may send to you. In any case, Waze will not knowingly share your personal information with any advertisers, without your explicit consent and as allowed for under this Privacy Policy;'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty.'}]