Detailed Instructions: You are given a list of queries separated by new line. Your job is to answer with the query that is the most well-formed or well-structured query in terms of grammar, punctuations, or spelling errors.
Problem:Pro 's and Con 's with North Korea 's nucular power ?
What kind of wheels do reebok 6k skates use ?
What is the names of KING duncans sons ?
How is a spider and a insect different ?
Solution:
What kind of wheels do reebok 6k skates use ?