The reason for this was proclaimed by a large banner stretched across the upper windows:
1	The	the	DET	DEF	Definite=Def|PronType=Art	2	det	_	_
2	reason	reason	NOUN	SG-NOM	Number=Sing	6	nsubj:pass	_	_
3	for	for	ADP	_	_	4	case	_	_
4	this	this	PRON	DEM-SG	Number=Sing|PronType=Dem	2	nmod	_	_
5	was	be	AUX	PAST	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	6	aux:pass	_	_
6	proclaimed	proclaim	VERB	PASS	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
7	by	by	ADP	_	_	10	case	_	_
8	a	a	DET	IND-SG	Definite=Ind|PronType=Art	10	det	_	_
9	large	large	ADJ	POS	Degree=Pos	10	amod	_	_
10	banner	banner	NOUN	SG-NOM	Number=Sing	6	obl	_	_
11	stretched	stretch	VERB	PASS	Tense=Past|VerbForm=Part|Voice=Pass	10	acl	_	_
12	across	across	ADP	_	_	15	case	_	_
13	the	the	DET	DEF	Definite=Def|PronType=Art	15	det	_	_
14	upper	upper	ADJ	POS	Degree=Pos	15	amod	_	_
15	windows	window	NOUN	PL-NOM	Number=Plur	11	obl	_	SpaceAfter=No
16	:	:	PUNCT	Colon	_	6	punct	_	_
