Quantum mechanics offers a fitting metaphor.
1	Quantum	quantum	NOUN	S	Gender=Masc|Number=Sing	2	nmod	_	_
2	mechanics	mechanics	NOUN	S	Number=Sing	3	nsubj	_	_
3	offers	offer	VERB	V	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	6	det	_	_
5	fitting	fitting	ADJ	A	Degree=Pos	6	amod	_	_
6	metaphor	metaphor	NOUN	S	Number=Sing	3	obj	_	SpaceAfter=No
7	.	.	PUNCT	FS	_	3	punct	_	_
