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In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

In Shakespeare studies, the problem plays are three plays that William Shakespeare wrote between the late 1590s and the first years of the seventeenth century: "All's Well That Ends Well", "Measure for Measure" and "Troilus and Cressida". Shakespeare's problem-plays are characterised by their complex and ambiguous tone, which shifts violently between dark, psychological drama and more straightforward comic material; compare tragicomedy. Question: Shakespearean tragedy is the designation given to most tragedies written by which playwright, several hundred years after Shakespeare's death, scholar F.S. Boas also coined a fifth category, in Shakespeare studies, the problem plays are three plays, wrote between the late 1590s and the first years of the seventeenth century: "All's Well That Ends Well", "Measure for Measure" and "Troilus and Cressida"? Answer: William Shakespeare
Output:
In Shakespeare studies, the problem plays are three plays that William Shakespeare wrote between the late 1590s and the first years of the seventeenth century: Alls Well That Ends Well, Measure for Measure and Troilus and Cressida.