That is the source of Tana's concern regarding the correct entering of divisions in the system.
1	That	that	PRON	DT	Number=Sing|PronType=Dem	4	nsubj	4:nsubj	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	4:cop	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	4:det	_
4	source	source	NOUN	NN	Number=Sing	0	root	0:root	_
5	of	of	ADP	IN	_	8	case	8:case	_
6-7	Tana's	_	_	_	_	_	_	_	_
6	Tana	Tana	PROPN	NNP	Number=Sing	8	nmod:poss	8:nmod:poss	_
7	's	's	PART	POS	_	6	case	6:case	_
8	concern	concern	NOUN	NN	Number=Sing	4	nmod	4:nmod:of	_
9	regarding	regard	VERB	VBG	VerbForm=Ger	12	case	12:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	12:det	_
11	correct	correct	ADJ	JJ	Degree=Pos	12	amod	12:amod	_
12	entering	entering	NOUN	NN	Number=Sing	8	nmod	8:nmod:regarding	_
13	of	of	ADP	IN	_	14	case	14:case	_
14	divisions	division	NOUN	NNS	Number=Plur	12	nmod	12:nmod:of	_
15	in	in	ADP	IN	_	17	case	17:case	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	17:det	_
17	system	system	NOUN	NN	Number=Sing	12	nmod	12:nmod:in	SpaceAfter=No
18	.	.	PUNCT	.	_	4	punct	4:punct	_
