upright=1.3|thumb|alt=|The round end of Goshikizuka Kofun in Kobe covered with restored fukiishi '''''' ( or "roofing stone") were a means of covering burial chambers and burial mounds during the kofun period of Japan (). Stones collected from riverbeds were affixed to the slopes of raised kofun and other burial chambers. They are considered to have descended from forms used in Yayoi-period tumuli. They are common in the early and mid-Kofun periods, but most late Kofun-period tumuli do not have them.
upright=1.3|thumb|alt=|The round end of Goshikizuka Kofun in Kobe covered with restored fukiishi ''' ( or "roofing stone") were a means of covering burial chambers and burial mounds during the kofun period of Japan (). Stones collected from riverbeds were affixed to the slopes of raised kofun and other burial chambers. They are considered to have descended from forms used in Yayoi-period tumuli. They are common in the early and mid-Kofun periods, but most late Kofun-period tumuli do not have them.
==Origin and ancestry==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).