You should book or ensure accommodation before you board a flight for the Chathams, as during the popular months of the tourism season, between October and April, accommodation can be severely limited.
1	You	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	3	nsubj	3:nsubj|5:nsubj	Discourse=joint-other_m:34->26:3|Entity=(49-person-acc:com-cf1-1-ana)
2	should	should	AUX	MD	VerbForm=Fin	3	aux	3:aux|5:aux	_
3	book	book	VERB	VB	VerbForm=Inf	0	root	0:root	_
4	or	or	CCONJ	CC	_	5	cc	5:cc	_
5	ensure	ensure	VERB	VB	VerbForm=Inf	3	conj	3:conj:or	_
6	accommodation	accommodation	NOUN	NN	Number=Sing	3	obj	3:obj|5:obj	Entity=(50-place-new-cf2-1-coref)
7	before	before	SCONJ	IN	_	9	mark	9:mark	Discourse=context-circumstance:35->34:0|XML=<hi rend:::"italic"></hi>
8	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	9	nsubj	9:nsubj	Entity=(49-person-giv:act-cf1-1-ana)
9	board	board	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	3	advcl	3:advcl:before	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	11:det	Bridge=32<51|Entity=(51-event-acc:inf-cf4-2-sgl
11	flight	flight	NOUN	NN	Number=Sing	9	obj	9:obj	_
12	for	for	ADP	IN	_	14	case	14:case	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	14:det	Entity=(1-place-giv:inact-cf3-2-coref-Chatham_Islands
14	Chathams	Chatham	PROPN	NNPS	Number=Plur	11	nmod	11:nmod:for	Entity=1)51)|SpaceAfter=No
15	,	,	PUNCT	,	_	16	punct	16:punct	_
16	as	as	SCONJ	IN	_	35	mark	35:mark	Discourse=explanation-motivation:36->34:1
17	during	during	ADP	IN	_	20	case	20:case	_
18	the	the	DET	DT	Definite=Def|PronType=Art	20	det	20:det	Entity=(52-time-new-cf8-3-sgl
19	popular	popular	ADJ	JJ	Degree=Pos	20	amod	20:amod	_
20	months	month	NOUN	NNS	Number=Plur	35	obl	35:obl:during	_
21	of	of	ADP	IN	_	24	case	24:case	_
22	the	the	DET	DT	Definite=Def|PronType=Art	24	det	24:det	Entity=(53-time-new-cf9-3-sgl
23	tourism	tourism	NOUN	NN	Number=Sing	24	compound	24:compound	Entity=(54-event-acc:com-cf7-1-sgl)
24	season	season	NOUN	NN	Number=Sing	20	nmod	20:nmod:of	Entity=53)52)|SpaceAfter=No
25	,	,	PUNCT	,	_	27	punct	27:punct	_
26	between	between	ADP	IN	_	27	case	27:case	_
27	October	October	PROPN	NNP	Number=Sing	20	nmod	20:nmod:between	Entity=(55-time-acc:com-cf5-1-sgl-October)|XML=<date when:::"--10"></date>
28	and	and	CCONJ	CC	_	29	cc	29:cc	_
29	April	April	PROPN	NNP	Number=Sing	27	conj	20:nmod:between|27:conj:and	Entity=(56-time-acc:com-cf6-1-sgl-April)|SpaceAfter=No|XML=<date when:::"--04"></date>
30	,	,	PUNCT	,	_	20	punct	20:punct	_
31	accommodation	accommodation	NOUN	NN	Number=Sing	35	nsubj:pass	35:nsubj:pass	Entity=(50-place-giv:act-cf2-1-coref)
32	can	can	AUX	MD	VerbForm=Fin	35	aux	35:aux	_
33	be	be	AUX	VB	VerbForm=Inf	35	aux:pass	35:aux:pass	_
34	severely	severely	ADV	RB	Degree=Pos	35	advmod	35:advmod	_
35	limited	limit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	advcl	9:advcl:as	SpaceAfter=No
36	.	.	PUNCT	.	_	3	punct	3:punct	_
