Assertion: sphinx | /r/HasProperty | the gateway
Facets:
Source sentences:
text: Malcolm Hutton and Gerry Cannon believe the Sphinx which sits on the sands on the Giza Plateau in front of the Great Pyramids could be the gateway to a labyrinth of tunnels and passages and a whole “underground metropolis” that has been lost to the world due to a cover-up by the Egyptian authorities.