Read this: In 1975, Sadat shifted Nasser's economic policies and sought to use his popularity to reduce government regulations and encourage foreign investment through his program of Infitah. Through this policy, incentives such as reduced taxes and import tariffs attracted some investors, but investments were mainly directed at low risk and profitable ventures like tourism and construction, abandoning Egypt's infant industries. Even though Sadat's policy was intended to modernise Egypt and assist the middle class, it mainly benefited the higher class, and, because of the elimination of subsidies on basic foodstuffs, led to the 1977 Egyptian Bread Riots.

What occured in 1977?
What is the answer? (If it cannot be answered, return "unanswerable")
Egyptian Bread Riots.