If so, this happy band has not been heard from since.
1	If	if	SCONJ	IN	_	2	mark	2:mark	_
2	so	so	ADV	RB	_	10	advcl	10:advcl:if	SpaceAfter=No
3	,	,	PUNCT	,	_	10	punct	10:punct	_
4	this	this	DET	DT	Number=Sing|PronType=Dem	6	det	6:det	_
5	happy	happy	ADJ	JJ	Degree=Pos	6	amod	6:amod	_
6	band	band	NOUN	NN	Number=Sing	10	nsubj:pass	10:nsubj:pass	_
7	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	aux	10:aux	_
8	not	not	PART	RB	_	10	advmod	10:advmod	_
9	been	be	AUX	VBN	Tense=Past|VerbForm=Part	10	aux:pass	10:aux:pass	_
10	heard	hear	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	0:root	_
11	from	from	ADP	IN	_	10	obl	10:obl	_
12	since	since	ADV	RB	_	10	advmod	10:advmod	SpaceAfter=No
13	.	.	PUNCT	.	_	10	punct	10:punct	_
