Question: What is the capital of one of the countries where the Toina sinifera is found?
Sentence (from "Shimotsuke Province"): Under the "Engishiki" classification system, Shimotsuke was ranked as one of the 13 "great countries" (大国) in terms of importance, and one of the 30 "far countries" (遠国) in terms of distance from the capital.
Relevant evidence: No