Pedigree of commet across the night sky

Horse	Parents	Grand-Parents	Great Grand-Parents	Great-Great Grand-Parents
commet across the ni...	Foundation	Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
	Foundation	Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation