At least this era left a legacy of efficient search engines and a fiber-optic infrastructure.
1	At	at	ADV	B	_	5	advmod	_	_
2	least	least	ADV	B	Degree=Sup	1	fixed	_	_
3	this	this	DET	DD	Number=Sing|PronType=Dem	4	det	_	_
4	era	era	NOUN	S	Number=Sing	5	nsubj	_	_
5	left	leave	VERB	V	Mood=Ind|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	a	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	7	det	_	_
7	legacy	legacy	NOUN	S	Number=Sing	5	obj	_	_
8	of	of	ADP	E	_	11	case	_	_
9	efficient	efficient	ADJ	A	Degree=Pos	10	amod	_	_
10	search	search	NOUN	S	Number=Sing	11	nmod	_	_
11	engines	engine	NOUN	S	Number=Plur	7	nmod	_	_
12	and	and	CCONJ	CC	_	15	cc	_	_
13	a	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	15	det	_	_
14	fiber-optic	fiber-optic	ADJ	A	Degree=Pos	15	amod	_	_
15	infrastructure	infrastructure	NOUN	S	Number=Sing	11	conj	_	SpaceAfter=No
16	.	.	PUNCT	FS	_	5	punct	_	_
