You have two screws that attach the sight to the wang.
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	2:nsubj	_
2	have	have	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	two	two	NUM	CD	NumForm=Word|NumType=Card	4	nummod	4:nummod	_
4	screws	screw	NOUN	NNS	Number=Plur	2	obj	2:obj|6:nsubj	_
5	that	that	PRON	WDT	PronType=Rel	6	nsubj	4:ref	_
6	attach	attach	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	acl:relcl	4:acl:relcl	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	_
8	sight	sight	NOUN	NN	Number=Sing	6	obj	6:obj	_
9	to	to	ADP	IN	_	11	case	11:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
11	wang	wang	NOUN	NN	Number=Sing	6	obl	6:obl:to	SpaceAfter=No
12	.	.	PUNCT	.	_	2	punct	2:punct	_
