<h3>Introduction</h3><br> BOLT Egyptian Arabic Co-reference -- Discussion Forum, SMS/Chat, and Conversational Telephone Speech was developed by <a href="https://www.raytheon.com/ourcompany/bbn/">Raytheon BBN Technologies </a> and consists of co-reference annotation on Egyptian Arabic discussion forum (DF), SMS/Chat and conversational telephone speech (CTS). <br> The DARPA <a href="https://www.ldc.upenn.edu/collaborations/current-projects/bolt"> BOLT</a> (Broad Operational Language Translation) program developed machine translation and information retrieval for less formal genres, focusing particularly on user-generated content. LDC supported the BOLT program by collecting informal data sources -- discussion forums, text messaging and chat -- in Chinese, Egyptian Arabic and English. The collected data was translated and annotated for various tasks including word alignment, treebanking, propbanking and co-reference. <br> <h3>Data</h3><br> DF data was collected from the web using a combination of manual and automatic processes. SMS/Chat material was donated or collected via live platforms. CTS data was taken from LDC's Egyptian Arabic CALLHOME and CALLFRIEND telephone collections. <br> Co-reference annotation aims to fill in all of the connections between specific mentions in the text that refer to the same entities and events in the discourse context. BOLT co-reference annotation was performed on BOLT treebank annotation. It covers noun phrases (including proper nouns, nominals, pronouns and null arguments), possessives, proper noun pre-modifiers and verbs. <br> Annotation files are presented in UTF-8 encoded XML format. <br> <h3>Sponsorship</h3><br> This material is based upon work supported by the Defense Advanced Research Projects Agency (DARPA) under Contract No. HR0011-11-C-0145. The content does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred. <br> <h3>Samples</h3><br> Please view the following samples: <br> <ul><br> <li><a href="desc/addenda/LDC2021T14.cts.txt">CTS Sample (TXT)</a></li><br> <li><a href="desc/addenda/LDC2021T14.df.txt">DF Sample (TXT)</a></li><br> <li><a href="desc/addenda/LDC2021T14.sms.txt">SMS/Chat Sample (TXT)</a></li><br> </ul><br> <h3>Updates</h3><br> None at this time. </br> Portions © 1996-1997, 2002, 2012-2015, 2019, 2021 Trustees of the University of Pennsylvania