@prefix eg: <http://example.org/eg#> .

[
	a eg:TopBlank
] .

[
	a []
] .

[
	a ()
] .

[]
	a [] ,
		[] .

[]
	a [] ,
		() .

[]
	a () ,
		[] .

[]
	a () ,
		() .

eg:s2
	a eg:SparseThing ,
		[] ,
		() ,
		[] ,
		[] ,
		() ,
		() ,
		<http://example.org/uri21> ,
		[] ,
		<http://example.org/uri22> ,
		() ,
		<http://example.org/uri23> ,
		[] ,
		eg:o21 ,
		[] ,
		eg:o22 ,
		() ,
		eg:o23 .

eg:s3
	a eg:Thing ;
	eg:p1 eg:o1 ,
	[
		a eg:SubThing ;
		eg:p2 eg:o2
	] , [
		a eg:OtherSubThing ;
		eg:p3 eg:o3
	] ;
	eg:p4 eg:o4 .