Robert           Jackson wrote An Excellent conceited Tragedie of Romeo and JulietAn Excellent conceited Tragedie of Romeo and Juliet is written by William Shakespeare
[Human]: Do you know about Robert Jackson? [Assistant]: He wrote An Excellent conceited Tragedie of Romeo and Juliet. Have you read it? [Human]: No. But wait, I thought that William Shakespeare wrote that one.  
Shakespeare was the original author. Robert Jackson just made it easier to read. 