When to use the Surface Form layer?

[fishfree]

There is no related documentation. I cannot figure it out.

[reckart]

This annotation is generated when importing CoNLL-U files that contain sub-token annotations. CoNLL-U, sub-tokens can have their own text which differs from the actual document (surface) text. INCEpTION will use the token text as the actual text and annotate the surface text using this annotation.

Example:

8-9    al         _
8      a          a
9      el         el

INCEpTION will use a and el for the text and annotate the span with a surface annotation saying al.

[fishfree]

No wonder, thank you!