This stream should be covering both P&I and not just principal.
1	This	this	DET	DT	Number=Sing|PronType=Dem	2	det	2:det	_
2	stream	stream	NOUN	NN	Number=Sing	5	nsubj	5:nsubj	_
3	should	should	AUX	MD	VerbForm=Fin	5	aux	5:aux	_
4	be	be	AUX	VB	VerbForm=Inf	5	aux	5:aux	_
5	covering	cover	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	0:root	_
6	both	both	CCONJ	CC	_	7	cc:preconj	7:cc:preconj	_
7	P&I	p&i	NOUN	NN	Number=Sing	5	obj	5:obj	_
8	and	and	CCONJ	CC	_	11	cc	11:cc	_
9	not	not	PART	RB	_	11	advmod	11:advmod	_
10	just	just	ADV	RB	_	11	advmod	11:advmod	_
11	principal	principal	NOUN	NN	Number=Sing	7	conj	5:obj|7:conj:and	SpaceAfter=No
12	.	.	PUNCT	.	_	5	punct	5:punct	_
