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: Does mexico experience any natural hazards ?
How do sting ray protect themselves ?
Where is a mountain in africa ?
What is the net worth of singer whitney houston ?

A: How do sting ray protect themselves ?
****
Q: Who was Sun Tzu ?
The biggest octopus in the world ?
What is the treatment for a sty on the eye ?
What are the steps to design a good Database ?

A: The biggest octopus in the world ?
****
Q: What is the order of chefs ?
What can passive smoking do to humans ?
What was the assembly in anceint greek government ?
Which steps to be taken on healthy relationship with supplier for purchase dept ?

A:
Which steps to be taken on healthy relationship with supplier for purchase dept ?
****