Question: The level of baseball that Chunichi Dragons is in is referred to as what outside Japan?
Sentence (from "Nippon Professional Baseball"): The roots of the league can be traced back to the formation of the "Greater Japan Tokyo Baseball Club" (大日本東京野球倶楽部 , Dai-Nippon Tōkyō Yakyū Kurabu ) in 1934 and the original Japanese Baseball League.
Relevant evidence: No