Too Long; Didn't Read
Understanding how different words are related based on the context they are used is an easy task for us humans. If we take an example of articles then we read a lot of articles related to different topics. In almost all the articles where an author is trying to teach you a new concept then the author will try to use the examples which are already known to you, to teach you any new concept. In a similar way computer also needs a way where they can learn about a topic and where they can understand how different words are related.