王x王, 辛x辛 = BAN

斑马，	Bānmǎ,	Zebra,
加班，	jiābān,	work overtime
班	bān	Class
瓣	bàn	Flap
辧	biàn	Be in trouble
辦	bàn	Do
辨	biàn	Distinguish
辩	biàn	Argue
辬	bān	To make a living								My pinyinizer recognized these all as BAN. They are all 1st or 4th tone.