surname Wu / area comprising southern Jiangsu, northern Zhejiang and Shanghai / name of states in Southern China at different historical periods
吴
=
口
+
天
:
Mnemonic symbol: the water buffalo from Wu.
Willy Walrus (w) enters the space station (Ø2) with a big mandarin (口) in his hands. The water buffalo (吴) sees it and begins to pant heavily, slightly in panic. Fortunately there is an angel (天) around to calm him down and let him know that it's not the sun he's fearing.