Amphibracs are never used to construct a whole, serious poem. So they mainly occur as variants within, say, an anapaestic structure.
... 2000 Gilyaks, 1300 Ainus, with 750 Orochons[?], 200 Tunguses[?] and Some Yakuts. The Gilyaks in the north support themselves by fishing and hunting. The Ainus inhabit the ...