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QUESTION
based on the database schema:
based on the database schema:
Movies(movieTitle, year, length, genre,studioName,producerCertificateNum)
StarsIn(movieTitle,movieYear,starName)
MovieStar(starName, address, gender,birthdate)
MovieExecutive(executiveName, address,certificateNum,netWorth)
Studio(studioName, address,presidentCertificateNum)
1) Use relational algebra to find the stars who played in every movies produced by Gary Kurtz
