path	value/explanation	url	count
invalid value (2 variant(s))			4
Leader/05 (leader05)	" "		2
880->246$ind1	" "		2
non-empty indicator (1 variant(s))			2
911$ind1	0		2
undefined subfield (5 variant(s))			10
886	h		2
886	x		2
886	z		2
911	#		2
911	a		2
repetition of non-repeatable subfield (1 variant(s))			2
886$a	there are multiple instances		2