Question: Are both Eugen Siebecke and Sen Katayama from the same country?
Sentence (from "Sen Katayama"): Sen Katayama( 片山 潜" Katayama Sen", December 26, 1859 – November 5, 1933), born Yabuki Sugataro( 藪木 菅太郎" Yabuki Sugatarō"), was an early member of the American Communist Party and co-founder, in 1922, of the Japanese Communist Party.
Relevant evidence: Yes