The pressure in this area is lower than that under the wing, so the wing is pushed upwards by the relatively higher pressure under the wing.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Bridge=177<185|Discourse=causal-cause:113->114:0|Entity=(185-abstract-acc:inf-cf4-2-sgl
2	pressure	pressure	NOUN	NN	Number=Sing	7	nsubj	7:nsubj	_
3	in	in	ADP	IN	_	5	case	5:case	_
4	this	this	DET	DT	Number=Sing|PronType=Dem	5	det	5:det	Entity=(181-place-giv:act-cf2-2-coref
5	area	area	NOUN	NN	Number=Sing	2	nmod	2:nmod:in	Entity=181)185)
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	7:cop	_
7	lower	low	ADJ	JJR	Degree=Cmp	0	root	0:root	_
8	than	than	ADP	IN	_	9	case	9:case	_
9	that	that	PRON	DT	Number=Sing|PronType=Dem	7	obl	7:obl:than	Bridge=177<186|Entity=(186-abstract-acc:inf-cf3-1-coref
10	under	under	ADP	IN	_	12	case	12:case	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	12:det	Entity=(179-object-giv:act-cf1*-2-coref
12	wing	wing	NOUN	NN	Number=Sing	9	nmod	9:nmod:under	Entity=179)186)|SpaceAfter=No
13	,	,	PUNCT	,	_	18	punct	18:punct	_
14	so	so	ADV	RB	_	18	advmod	18:advmod	Discourse=elaboration-additional:114->109:1
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	16:det	Entity=(179-object-giv:act-cf1*-2-coref
16	wing	wing	NOUN	NN	Number=Sing	18	nsubj:pass	18:nsubj:pass	Entity=179)
17	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	18	aux:pass	18:aux:pass	_
18	pushed	push	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	parataxis	7:parataxis	_
19	upwards	upwards	ADV	RB	Degree=Pos	18	advmod	18:advmod	_
20	by	by	ADP	IN	_	24	case	24:case	_
21	the	the	DET	DT	Definite=Def|PronType=Art	24	det	24:det	Entity=(186-abstract-giv:act-cf3-4-coref
22	relatively	relatively	ADV	RB	Degree=Pos	23	advmod	23:advmod	_
23	higher	high	ADJ	JJR	Degree=Cmp	24	amod	24:amod	_
24	pressure	pressure	NOUN	NN	Number=Sing	18	obl:agent	18:obl:agent	_
25	under	under	ADP	IN	_	27	case	27:case	_
26	the	the	DET	DT	Definite=Def|PronType=Art	27	det	27:det	Entity=(179-object-giv:act-cf1*-2-coref
27	wing	wing	NOUN	NN	Number=Sing	24	nmod	24:nmod:under	Entity=179)186)|SpaceAfter=No
28	.	.	PUNCT	.	_	7	punct	7:punct	_
