Question: Matthias Mann worked with in a group at Yale University with the man who won a Nobel Prize in Chemistry and shared half of the award with who?
Context: In chemistry, the Noyori asymmetric hydrogenation of ketones is a chemical reaction for the enantioselective hydrogenation of ketones, aldehydes, and imines.  This reaction exploits using chiral ruthenium catalysts introduced by Ryoji Noyori.  He shared half of the Nobel Prize in Chemistry in 2001 with William S. Knowles for the study of the asymmetric hydrogenation. Frederick Sanger ( ; 13 August 1918 – 19 November 2013) was a British biochemist who twice won the Nobel Prize in Chemistry, one of only two people to have done so in the same category (the other is John Bardeen in physics), the fourth person overall with , and the third person overall with two Nobel Prizes in the sciences.  In 1958, he was awarded a Nobel Prize in chemistry "for his work on the structure of proteins, especially that of insulin".  In 1980, Walter Gilbert and Sanger shared half of the chemistry prize "for their contributions concerning the determination of base sequences in nucleic acids".  The other half was awarded to Paul Berg "for his fundamental studies of the biochemistry of nucleic acids, with particular regard to recombinant DNA". Oscar Gonzales is an author and poet born in Puerto Cortes, Honduras.  He has published five books in the areas of literature and the social sciences and has received literary awards from Yale University.  Lauded by the Mexican poet and intellectual José Emilio Pacheco as "the rise of a fresh and unique young voice," Oscar Gonzales studied under Yale's eminent literary critics Harold Bloom, Manuel Durán, and Roberto González-Echevarría.  He has a combined B.A. in Latin American studies (history, economics and literature) and B.A./M.A. in Latin American literature from Yale University, and in 1991 he became the first undergraduate to win Yale's Theron Rockwell Field Prize for his anthology of poems "Donde el plomo flota" (Where Lead Floats).  He currently resides in Washington DC with his wife and three children.  Durán classifies Gonzales's work with that of Nobel Prize winner Pablo Neruda "because of the amplitude of his poetry's horizons, the strength and firmness of its voice, and the 'intimist' and cosmic sensuality of his love poetry.  Eroticism and panoramic vision of nature are characteristics that unite the two poets, together with an interest in the themes of liberty and the disdain of oppression, injustice, tyranny." Ryōji Noyori (野依 良治 , Noyori Ryōji , born September 3, 1938) is a Japanese chemist.  He won the Nobel Prize in Chemistry in 2001.  Noyori shared half of the prize with William S. Knowles for the study of chirally catalyzed hydrogenations; the second half of the prize went to K. Barry Sharpless for his study in chirally catalyzed oxidation reactions (Sharpless epoxidation). The Nobel Prize in Chemistry (Swedish: "Nobelpriset i kemi" ) is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry.  It is one of the five Nobel Prizes established by the 1895 will of Alfred Nobel, who died in 1896.  These prizes are awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine.  As dictated by Nobel's will, the award is administered by the Nobel Foundation and awarded by a committee that consists of five members elected by the Royal Swedish Academy of Sciences.  The first Nobel Prize in Chemistry was awarded in 1901 to Jacobus Henricus van 't Hoff, of the Netherlands.  Each recipient receives a medal, a diploma and a monetary award prize that has varied throughout the years.  In 1901, van 't Hoff received 150,782 SEK, which is equal to 7,731,004 SEK in December 2007.  The award is presented in Stockholm at an annual ceremony on December 10, the anniversary of Nobel's death. James Edward Rothman (born November 3, 1950) is an American biochemist.  He is the Fergus F. Wallace Professor of Biomedical Sciences at Yale University, the Chairman of the Department of Cell Biology at Yale School of Medicine, and the Director of the Nanobiology Institute at the Yale West Campus.  Rothman is also concurrently serving as adjunct professor of physiology and cellular biophysics at Columbia University.  and a research professor at the Institute of Neurology, University College London (UCL).  Rothman was awarded the 2013 Nobel Prize in Physiology or Medicine, for his work on vesicle trafficking (shared with Randy Schekman and Thomas C. Südhof).  He has also received many other honors, including the King Faisal International Prize in 1996, the Louisa Gross Horwitz Prize from Columbia University and the Albert Lasker Award for Basic Medical Research both in 2002. Matthias Mann (born 10 October 1959) is a scientist in the area of mass spectrometry and proteomics.  Born in Germany he studied mathematics and physics at the University of Göttingen.  He received his Ph.D. in 1988 at Yale University where he worked in the group of John Fenn, who was later awarded the Nobel Prize in Chemistry.  After a postdoctoral fellowship at the University of Southern Denmark in Odense he became group leader at the European Molecular Biology Laboratory (EMBL) in Heidelberg.  Later he went back to Odense as a professor of bioinformatics.  Since 2005 he has been a director at the Max Planck Institute of Biochemistry in Munich.  In addition, he will also become a principal investigator at the newly founded "Novo Nordisk Foundation Center for Protein Research" in Copenhagen. John Bennett Fenn (June 15, 1917December 10, 2010) was an American research professor of analytical chemistry who was awarded a share of the Nobel Prize in Chemistry in 2002.  Fenn shared half of the award with Koichi Tanaka for their work in mass spectrometry.  The other half of the 2002 award went to Kurt Wüthrich.  Fenn's contributions specifically related to the development of electrospray ionization, now a commonly used technique for large molecules and routine liquid chromatography-tandem mass spectrometry.  Early in his career, Fenn did research in the field of jet propulsion at Project SQUID, and focused on molecular beam studies.  Fenn finished his career with more than 100 publications, including one book. William Standish Knowles (June 1, 1917 – June 13, 2012) was an American chemist.  He was born in Taunton, Massachusetts.  Knowles was one of the recipients of the 2001 Nobel Prize in Chemistry.  He shared half the prize with Ryōji Noyori for their work in asymmetric synthesis, specifically for his work in hydrogenation reactions.  The other half was awarded to K. Barry Sharpless for his work in oxidation reactions. The Nobel Prize in Physiology or Medicine (Swedish: "Nobelpriset i fysiologi eller medicin" ) is awarded annually by the Swedish Karolinska Institute to scientists and doctors in the various fields of physiology or medicine.  It is one of the five Nobel Prizes established by the 1895 will of Alfred Nobel (who died in 1896), awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine.  As dictated by Nobel's will, the award is administered by the Nobel Foundation and awarded by a committee that consists of five members and an executive secretary elected by the Karolinska Institute.  While commonly referred to as the Nobel Prize in Medicine, Nobel specifically stated that the prize be awarded for "physiology or medicine" in his will.  Because of this, the prize can be awarded in a broader range of fields.  The first Nobel Prize in Physiology or Medicine was awarded in 1901 to Emil Adolf von Behring, of Germany.  Each recipient receives a medal, a diploma and a monetary award that has varied throughout the years.  In 1901, von Behring received 150,782 SEK, which is equal to 7,731,004 SEK in December 2008.  In 2013, the prize was awarded to James E. Rothman, Randy W. Schekman and Thomas C. Südhof; they were recognised "after discovering how cells precisely transport material".  The award is presented in Stockholm at an annual ceremony on December 10, the anniversary of Nobel's death.
Answer: Koichi Tanaka