vertical file

A vertical file is a text file where each token (or word) is on a separate line. This format is typically used for text corpora and may contain additional metainformation (annotation).

The first column contains tokens and structures, the other columns may contain part of speech, lemmas or other positional attributes. An example of a vertical file:

Text		NN	text-n
corpora		NN	corpus-n
are		VBP	be-v
comprised	VVN	comprise-v
of		IN	of-i

column 1: tokens and structures
column 2: part of speech tags
column 3: lempos attribute