BBN Pronoun Coreference and Entity Type Corpus


Item Name: BBN Pronoun Coreference and Entity Type Corpus
Authors: Ralph Weischedel and Ada Brunstein
LDC Catalog No.: LDC2005T33
ISBN: 1-58563-362-3
Release Date: Sep 20, 2005
Data Type: text
Project(s): ACE, AQUAINT, GALE, TIDES
Language(s): English
Language ID(s): eng
Distribution: Web Download
Member fee: $0 for 2005 members
Non-member Fee: US $1000.00
Reduced-License Fee: US $500.00
Extra-Copy Fee: N/A
Non-member License: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Ralph Weischedel and Ada Brunstein
2005
BBN Pronoun Coreference and Entity Type Corpus
Linguistic Data Consortium, Philadelphia

Introduction

This file contains documentation on the BBN Pronoun Coreference and Entity Type Corpus, Linguistic Data Consortium (LDC) catalog number LDC2005T33 and ISBN 1-58563-362-3.

This publication supplements the one million word Penn Treebank corpus of Wall Street Journal texts (LDC95T7). The corpus contains stand-off annotation of pronoun coreference, indicated by sentence and token numbers, as well as annotation of a variety of entity and numeric types. All annotation was done by hand at BBN using proprietary annotation tools. This corpus was developed by BBN to support the ACE and AQUAINT programs

The corpus contains two components:

  • Pronoun coreference. Stand-off annotation of pronoun coreference of the WSJ corpus is provided in a single file. Pronouns and antecedents are indexed by sentence and token numbers.

  • Entity types. The corpus includes annotation of 12 named entity types (Person, Facility, Organization, GPE, Location, Nationality, Product, Event, Work of Art, Law, Language, and Contact-Info), nine nominal entity types (Person, Facility, Organization, GPE, Product, Plant, Animal, Substance, Disease and Game), and seven numeric types (Date, Time, Percent, Money, Quantity, Ordinal and Cardinal). Several of these types are further divided into subtypes. Annotation for a total of 64 subtypes is provided.

Samples

For an example of the data in this corpus, please examing the following samples:

Copyright

Portions 1989 Wall Street Journal, 2002 BBNT Solutions LLC., 2005 Trustees of the University of Pennslyvania.