0. virion (GO ID:19012)
	1. virion part (GO ID:44423)
		1. capsomere (GO ID:46727)
		2. viral capsid (GO ID:19028)
			1. helical viral capsid (GO ID:19029)
			2. icosahedral viral capsid (GO ID:19030)
		3.   viral envelope (GO ID:19031)
		4.   viral genome (GO ID:19015)
			1.   DNA viral genome (GO ID:19021)
			2.   RNA viral genome (GO ID:19022)
				1.   dsRNA viral genome (GO ID:19023)
				2.   ssRNA viral genome (GO ID:19024)
					1. ambisense viral genome (GO ID:19027)
					2. negative sense viral genome (GO ID:19026)
					3. positive sense viral genome (GO ID:19025)
				3.   non-segmented viral genome (GO ID:19016)
				4.   segmented viral genome (GO ID:19017)
					1.   bipartite viral genome (GO ID:19018)
					2.   multipartite viral genome (GO ID:19020)
					3.   tripartite viral genome (GO ID:19019)
		5.   viral nucleocapsid (GO ID:19013)
		6.   viral portal complex (GO ID:46798)
		7.   viral procapsid (GO ID:46729)
		8.   viral scaffold (GO ID:46806)
		9.   viral tegument (GO ID:19033)
		10.   virion membrane (GO ID:55036)