input: [Category of use] Advertising [Example] 
output: We use cookies to make advertising more engaging to users and more valuable to publishers and advertisers. Some common applications of cookies are to select advertising based on what’s relevant to a user; to improve reporting on campaign performance; and to avoid showing ads the user has already seen. Google uses cookies like NID and SID to help customize ads on Google properties, like Google Search. For example, we use such cookies to remember your most recent searches, your previous interactions with an advertiser’s ads or search results, and your visits to an advertiser’s website. This helps us to show you customized ads on Google. We also use cookies for advertising we serve across the web. Our main advertising cookie on non-Google sites is called ‘id’ and it is stored in browsers under the domain doubleclick.net. We use others with names such as _drt_, FLC, and exchange_uid. Other Google properties, like YouTube, may also use these cookies to show you more relevant ads. Sometimes an advertising cookie may be set on the domain of the site you are visiting. In the case of our DoubleClick product, a cookie called ‘__gads’ may be set on the domain of the site you are visiting. Unlike cookies that are set on Google's own domains, this cookie can't be read by Google when you're on other sites. It serves purposes such as measuring interactions with the ads on that domain and preventing the same ads from being shown to you too many times. Google also uses conversion cookies whose main purpose is to help advertisers determine how many times people who click on their ads end up purchasing their products. These cookies allow Google and the advertiser to determine that you clicked the ad and later visited the advertiser site. Conversion cookies are not used by Google for interest-based ad targeting and persist for a limited time only. These cookies are generally set in the googleadservices.com or google.com/ads domain, and have names like ‘Conversion’ and ‘TAID’. Conversion cookie data may also be used in combination with your Google account to link conversion events across different devices you use. Only anonymous data gathered from these cookies is shared with advertisers. Some of our other cookies may be used to measure conversion events as well. For example, DoubleClick and Google Analytics cookies may also be used for this purpose.