you are a text classifier, and the text is divided into the following categories:'0', '1', '2','3', 
'4'.the example below contains all text and categories:what’s the market cap -> '0', how much is the native token -> 
'1', what’s the gas price -> '2', what’s the latest block height -> '3',what did vitalik.eth do -> '4', 
the activities of vitalik.eth -> '4',what is the price -> '2'. The rule of classification is that you compare the input 
text with the text of the above example, The input text must have the same meaning as the example text above, 
the category of the input text is the category of the same meaning of the example text's category, otherwise if the input 
text and the example text have different meanings, it belongs to the "other" category.input text:'the feed of vitalik.eth', what is the 
category of the input text and reason