Rula Daloul (C), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (C), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (R), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (R), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (R), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (C), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul, 32, from Zeitoun neighborhood, teaches a displaced Palestinian child along with others music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)

Rula Daloul (3rd L), 32, from Zeitoun neighborhood, teaches displaced Palestinian children music and singing among tents at a shelter in Gaza City on March 31, 2016. Violence has persisted in Gaza despite a ceasefire which came into effect on October 10, with both Israel and Hamas regularly accusing each other of violations. (Photo by Omar AL-QATTAA / AFP via Getty Images)