Neutral Reviewers

Write a SQL Query to find the name of all reviewers who have rated their ratings with a NULL value.

Output Schema:

reviewer_name

NOTE: Output column name has to match the given output schema.


Example Output:

reviewer_name
MaxPlank
NeilsBohr
Schrodinger

Schema Design:

Schema Description

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a doubt? Checkout Sample Codes for more details.
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