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Alexandr Dolgopolov ( Quarterfinals ) Florian Mayer ( Quarterfinals ) Mikhail Youzhny ( First round ) Jürgen Melzer ( First round ) Draw Finals Top half Bottom half Qualifying Seeds Jan-Lennard Struff ( Qualifying competition ) Illya Marchenko ( First round ) John Millman ( Qualified ) Simon Greul ( First round ) Qualifiers John Millman Matthias Bachinger Lucky losers Draw First qualifier Second qualifier Third qualifier Fourth qualifier References
 Alexandr Dolgopolov, Florian Mayer, Mikhail Youzhny, Jürgen Melzer, Illya Marchenko, John Millman, Simon Greul, John Millman Matthias Bachinger
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Alexandr Dolgopolov, Florian Mayer, Mikhail Youzhny, Jürgen Melzer, Illya Marchenko, John Millman, Simon Greul, John Millman Matthias Bachinger