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.

What is excretory organ ?
How do you control oxygen levels of water in a fish tank ?
What are ways to prevent gingivitis ?
What are the transport facilities like in Paris ?
What is excretory organ ?

What did kenry hudson want to achieve ?
How did the vietnam soldiers sleep ?
How much do locomotive weigh ?
Where in canada did alexander create the phone ?
How much do locomotive weigh ?

Clinical correlation required ?
How did economic growth change life in the 1800 's ?
What is the scientific name for a lilac tree leaf ?
What are the different kinds of communicable disease ?

Clinical correlation required ?