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In 1989 while a student and working as a systems administrator for the School of Computer Science , Emtage conceived and implemented the original version of the Archie search engine , the world 's first Internet search engine and the start of a line which leads directly to today 's Altavista , Yahoo !
 Emtage, Internet, Yahoo !
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Emtage, Internet, Yahoo !