Zahi Hawass , secretary general of antiquities in Egypt and director of the Giza pyramids excavations , said in an e-mail message , '' The idea that concrete was used is unlikely and completely unproven . ''
Egypt /location/location/contains Giza
Zahi Hawass /people/person/nationality Egypt
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Egypt
LOCATION
Giza
LOCATION
/location/location/contains
Zahi Hawass
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Egypt
LOCATION
/people/person/nationality