A committee of 4 to achieve interplanetary peace has to be formed from a group of 4 Martians and 3 Venutians.

The Martians are:	The Venutians are:
	Aza			Zabo
	Buxa  			Yeco
	Cawa			Xido
	Dava  
	

Aza, Yeco, and Zabo are males, and the others are females. The committee must have 3 males, and no more than 2 members from each planet.

Which alien cannot be a member of the committee?

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