##fileformat=VCFv4.3
##FILTER=<ID=PASS,Description="All filters passed">
##reference=ref.fa
##contig=<ID=1,assembly=b37,length=249250621>
##ALT=<ID=CNV,Description="Copy Number Variation">
##INFO=<ID=END,Number=1,Type=Integer,Description="End position of the variant described in this record">
##INFO=<ID=DB,Number=1,Type=String,Description="CNV id from a database">
##INFO=<ID=XXX,Number=0,Type=Flag,Description="Sites listed in XXX">
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO
1	10	.	C	<CNV>	.	.	END=19;DB=cnv10_15;XXX
1	20	.	C	<CNV>	.	.	END=30
