You are given a set of queries separated by '
', and your job is to find out the query which is not a well-formed or well-structured query in terms of grammar, punctuations, or spelling errors.
Q: What is the role played by bacteria in the nitrogen cycle ?
How much does an interior decorater get paid ?
What is is the plural staff ?
How do you find someones home page to post a comment ?
A:
What is is the plural staff ?