Conceptual Cognitive Annotation ©
UCCA is a novel approach to grammatical representation.
It was developed in the Computational Linguistics Lab of the Computer Science Department of the Hebrew University by Omri Abend and Ari Rappoport. Tomer Eshet partnered in the development of the web application.
This site allows you to annotate text using UCCA's annotation scheme.
A small sample dataset is already available for download here.