(That is a strong argument in favor of the traditional three-way system; in response, proponents of the two-way system have attacked the underlying evidence by claiming that it "hinges upon especially difficult or vague or otherwise dubious etymologies" (such as Sihler 1995).)
(這是贊同傳統三分系統的最強硬證據；作為回應，兩分系統的支持者攻擊底層證據，斷言它是“以特別困難或模糊或可疑的語源為轉移”(比如 Sihler 1995))。