Detailed Instructions: In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.
Problem:robert leroy johnson -lrb- may 8 , 1911 august 16 , 1938 -rrb- was an american blues musician , among the most famous of delta blues musicians.
Solution:
robert leroy johnson -lrb- may 8 , 1911 - august 16 , 1938 -rrb- was an american blues musician , among the most well known of delta blues musicians.