Have a relational database with the following tables

RESTAURANT(RT_ID, NAME, TYPE, LOCATION)

PROXIMITY(RT1_ID, RT2_ID, DISTANCE)

USER(U_ID, NAME, EMAIL)

REVIEW(U_ID, RT_ID, RT_DATE, RATING, COMMENT)

What’s the relational algebra for “name of any user who has never given Chez Brian a rating lower than 5”?

Is this right?

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