**4.2 Treebanks and annotated corpora**

The creation of annotated corpora at different levels (layers) constitutes a further development and a sound premise for a good selection of metadata. Here, we refer only to the creation of annotated corpora in a great deal of different languages at the syntactic level, treebanks, and to the systematically planned discussion about the relationship between annotation as such, and the adoption of apparatus according to which annotation needs to be done (not only manually, but also automatically, of course): the Treebanks and Linguistic Theories (TLT) conference series37.
