This article is from the Japanese FAQ, by TANAKA Tomoyuki tanaka@cs.indiana.edu and Olaf Meeuwissen olaf@IMSL.shinshu-u.ac.jp with numerous contributions by others.
"omedetou gozaimasu" is the standard polite form for `Congratula-
tions'. Depending on the situation, a simple "omedetou" may be
enough, though.
 
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