I am thinking 4 slides at the most.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	3	nsubj	3:nsubj	_
2	am	be	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	3	aux	3:aux	_
3	thinking	think	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	0:root	_
4	4	4	NUM	CD	NumForm=Digit|NumType=Card	5	nummod	5:nummod	_
5	slides	slide	NOUN	NNS	Number=Plur	3	obj	3:obj	_
6	at	at	ADP	IN	_	8	case	8:case	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	_
8	most	most	ADJ	JJS	Degree=Sup	5	nmod	5:nmod:at	SpaceAfter=No
9	.	.	PUNCT	.	_	3	punct	3:punct	_
