Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example annotations using the Brat tool (http://brat.nlplab.org). Entities and attributes from different classes are distinguished by colors; relations are annotated as arrows between entities and attributes. It is able to generate structured annotation result files using Brat.
