Question: The entrance to the palace which houses the imperial sword is called what?
Sentence (from "Kusanagi"): It was originally called Ame-no-Murakumo-no-Tsurugi (天叢雲剣 , "Heavenly Sword of Gathering Clouds") , but its name was later changed to the more popular "Kusanagi-no-Tsurugi" ("Grass-Cutting Sword").
Relevant evidence: No