Concepts can be complex and abstract, like justice, or more concrete, like types of birds.
1	Concepts	concept	NOUN	NNS	Number=Plur	4	nsubj	4:nsubj|6:nsubj|13:nsubj	Discourse=elaboration-additional:108->93:4|Entity=(6-abstract-giv:inact-cf1-1-coref)
2	can	can	AUX	MD	VerbForm=Fin	4	aux	4:aux	_
3	be	be	AUX	VB	VerbForm=Inf	4	cop	4:cop	_
4	complex	complex	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	and	and	CCONJ	CC	_	6	cc	6:cc	_
6	abstract	abstract	ADJ	JJ	Degree=Pos	4	conj	4:conj:and	SpaceAfter=No
7	,	,	PUNCT	,	_	9	punct	9:punct	_
8	like	like	ADP	IN	_	9	case	9:case	_
9	justice	justice	NOUN	NN	Number=Sing	4	obl	4:obl:like	Entity=(153-abstract-new-cf2-1-sgl)|SpaceAfter=No
10	,	,	PUNCT	,	_	13	punct	13:punct	_
11	or	or	CCONJ	CC	_	13	cc	13:cc	_
12	more	more	ADV	RBR	Degree=Cmp	13	advmod	13:advmod	_
13	concrete	concrete	ADJ	JJ	Degree=Pos	4	conj	4:conj:or	SpaceAfter=No
14	,	,	PUNCT	,	_	16	punct	16:punct	_
15	like	like	ADP	IN	_	16	case	16:case	_
16	types	type	NOUN	NNS	Number=Plur	13	obl	13:obl:like	Entity=(154-abstract-new-cf3-1-sgl
17	of	of	ADP	IN	_	18	case	18:case	_
18	birds	bird	NOUN	NNS	Number=Plur	16	nmod	16:nmod:of	Entity=(155-animal-new-cf4-1-sgl)154)|SpaceAfter=No
19	.	.	PUNCT	.	_	4	punct	4:punct	_
