Margaret "Maggie" Black (March 31, 1930 – May 11, 2015) was a ballet teacher who taught in New York City during the 1970s and 1980s.
 She coached dancers such as Martine Van Hamel, Kevin McKenzie, Natalia Makarova and Gelsey Kirkland.
 She developed a ballet technique based on anatomy.
 She stressed moving from a neutral spinal and pelvic alignment with weight evenly distributed throughout each foot.
 She amassed a large following of both ballet and modern dancers.
 Eventually she split her class into two, one for modern dancers and one for ballet dancers.
 Choreographers such as William Forsythe and Ohad Naharin attended her class.
Ohad Naharin (born 1952) (Hebrew: אוהד נהרין) is an Israeli contemporary dancer, choreographer and dance company artistic director.
Rina Schenfeld (Hebrew: רנה שיינפלד‎ ‎ ) (born 1938) is an Israeli choreographer and dancer.
 As prima ballerina and choreographer of the Batsheva dance company, she was described by the New York Times as "one of the most important artists of our generation."
Aaron Osborne (1947 – December 13, 1995)) was an American modern dancer known for his performances in works by José Limón, Maggie Black and Lar Lubovitch.
 Also a dance teacher, he was the cofounder of a San Francisco presenting organization, Dancer's Group, and its associated dance school, Footwork Studio.
Emanuel Gat is an Israeli choreographer of contemporary dance.
Moshe Efrati (Hebrew: משה אפרתי) is an Israeli choreographer and founder and artistic director of the Kol Demama Dance Company, based in Tel Aviv.
 His works have been performed in venues around the world.
Idan Cohen (born June 6, 1978) is an Israeli choreographer and opera director.
 He was born in a kibbutz Mizra, Israel.
Yasmeen Godder, born in 1973, is an Israeli choreographer and dancer.
Barak Marshall is an American-born Israeli choreographer and singer.
Hofesh Shechter (born 1975) is an Israeli choreographer based in London.

Question: Which Israeli choreographer did Maggie Black teach?
Answer: Ohad Naharin