Universal Dependencies, frequently abbreviated as UD, is an international cooperative project to create treebanks of the world's languages.
The project's primary aim is to achieve cross-linguistic consistency of annotation, while still permitting language-specific extensions when necessary.
The annotation scheme has it roots in three related projects: Stanford Dependencies,[2] Google universal part-of-speech tags,[3] and the Interset interlingua[4] for morphosyntactic tagsets.
The emphasis for UD is on producing cross-linguistically consistent dependency analyses in order to facilitate structural parallelism across diverse languages.
More specific information can be added to each word by means of a free morpho-syntactic feature set.
A more traditional dependency grammar analysis of this sentence, one that is motivated more by syntactic considerations than by semantic ones, looks like this:[9]