tools/udtools/tests/test-cases/valid/minimal-empty-node.conllu

# sent_id = minimal-empty-node
# text = This holes
# valid: empty nodes may contain underscores in all fields except ID and DEPS.
1	This	this	PRON	_	_	0	root	1.1:nsubj	_
1.1	_	_	_	_	_	_	_	0:root	_
2	holes	hole	NOUN	_	_	1	orphan	1.1:obj	_