Question: What part of the Sphinx has been damaged?
About the article "Great Sphinx of Giza", section "Racial characteristics".

Candidate passages:
Over the years several authors have commented on what they perceive as "Negroid" characteristics in the face of the Sphinx.
This issue has become part of the Ancient Egyptian race controversy, with respect to the ancient population as a whole.
The face of the Sphinx has been damaged over the millennia.
The sphinx, probably built out of a rock formation used to cut the blocks for the pyramid itself, may have been part of the complex. 
There have been multiple groups formed out of the Sphinx Organization.
The organization itself has an orchestra known as the Sphinx Symphony.
Other groups created by the Sphinx Organization are: Catalyst Quartet, Harlem Quartet, and Sphinx Chamber Orchestra.
The Sphinx Symphony is composed of Black and Latino professional players and teachers from around the United States.
The Sphinx Chamber Orchestra allows Black and Latino musicians a chance to tour and classical music at a professional level.
The Catalyst Quartet is formed by Sphinx Competition top laureates and the Harlem Quartet has all first place winners of the competition. 
Sphinx is a continuous-speech, speaker-independent recognition system making use of hidden Markov acoustic models (HMMs) and an n-gram statistical language model.
It was developed by Kai-Fu Lee.
Sphinx featured feasibility of continuous-speech, speaker-independent large-vocabulary recognition, the possibility of which was in dispute at the time (1986).
Sphinx is of historical interest only; it has been superseded in performance by subsequent versions.
An archival article describes the system in detail. 
The one-metre-wide nose on the face is missing.
Examination of the Sphinx's face shows that long rods or chisels were hammered into the nose, one down from the bridge and one beneath the nostril, then used to pry the nose off towards the south.
The Arab historian al-Maqrīzī, writing in the 15th century, attributes the loss of the nose to iconoclasm by Muhammad Sa'im al-Dahr, a Sufi Muslim from the khanqah of Sa'id al-Su'ada.
In AD 1378, upon finding the local peasants making offerings to the Sphinx in the hope of increasing their harvest, Sa'im al-Dahr was so outraged that he destroyed the nose, and was hanged for vandalism.
Al-Maqrīzī describes the Sphinx as the "talisman of the Nile" on which the locals believed the flood cycle depended.
There is also a story that the nose was broken off by a cannonball fired by Napoleon's soldiers, that still lives on today.
Other variants indict British troops, the Mamluks, and others.
Sketches of the Sphinx by the Dane Frederic Louis Norden, made in 1738 and published in 1757, show the Sphinx missing its nose.
In addition to the lost nose, a ceremonial pharaonic beard is thought to have been attached, although this may have been added in later periods after the original construction.
Egyptologist Vassil Dobrev has suggested that had the beard been an original part of the Sphinx, it would have damaged the chin of the statue upon falling.
The lack of visible damage supports his theory that the beard was a later addition.