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.

Wich is the nickname of Michigan ?
Where was alson stoner born ?
What natural resource affects north africa 's economy ?
What are some instuments invented in the 20th century ?
Wich is the nickname of Michigan ?