is a start tag and is an end tag which together describe an element of data, in this case, the customer's name.
1	is	be	AUX	PRES	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
2	a	a	DET	IND-SG	Definite=Ind|PronType=Art	4	det	_	_
3	start	start	NOUN	SG-NOM	Number=Sing	4	compound	_	_
4	tag	tag	NOUN	SG-NOM	Number=Sing	0	root	_	_
5	and	and	CCONJ	_	_	9	cc	_	_
6	is	be	AUX	PRES	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
7	an	an	DET	IND-SG	Definite=Ind|PronType=Art	9	det	_	_
8	end	end	NOUN	SG-NOM	Number=Sing	9	compound	_	_
9	tag	tag	NOUN	SG-NOM	Number=Sing	4	conj	_	_
10	which	which	PRON	WH-REL	PronType=Rel	12	nsubj	_	_
11	together	together	ADV	_	_	12	advmod	_	_
12	describe	describe	VERB	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	9	acl:relcl	_	_
13	an	an	DET	IND-SG	Definite=Ind|PronType=Art	14	det	_	_
14	element	element	NOUN	SG-NOM	Number=Sing	12	obj	_	_
15	of	of	ADP	_	_	16	case	_	_
16	data	data	NOUN	PL-NOM	Number=Sing	14	nmod	_	SpaceAfter=No
17	,	,	PUNCT	Comma	_	20	punct	_	_
18	in	in	ADP	_	_	20	case	_	_
19	this	this	DET	DEM-SG	Number=Sing|PronType=Dem	20	det	_	_
20	case	case	NOUN	SG-NOM	Number=Sing	25	nmod	_	SpaceAfter=No
21	,	,	PUNCT	Comma	_	20	punct	_	_
22	the	the	DET	DEF	Definite=Def|PronType=Art	25	det	_	_
23	customer	customer	NOUN	SG	Number=Sing	25	nmod	_	SpaceAfter=No
24	's	's	PART	GEN	_	23	case	_	_
25	name	name	NOUN	SG-NOM	Number=Sing	14	appos	_	SpaceAfter=No
26	.	.	PUNCT	Period	_	4	punct	_	_
