In meta tag, The "name" attribute as the variable name and the "content" attribute as the value of that variable.
<meta name="pageType" content="category" />
<meta name="Country" content='india'/>
The variable will capture as: pageType = "category" when "pageType" match with condition then the value of "category" should go to into "evars" example :- evar5 = category and evar6 = india.