**Introduction** MATERIAL Pashto-English Language Pack,(LDC2026S15) was developed by Appen for the IARPA (Intelligence Advanced Research Projects Activity) MATERIAL (Machine Translation for English Retrieval of Information in Any Language) program. It contains approximately 120 hours of Pashto conversational telephone speech, transcripts, English translations, annotations and queries. The MATERIAL program focused on underserved languages with the ultimate goal to build cross language information retrieval systems to find speech and text content using English search queries. **Data** The Pashto speech in this release represents that spoken in four dialect regions of Afghanistan and Pakistan. The gender distribution among speakers is approximately 30% female and 70% male; speakers' ages range from 18 years to 68 years. Calls were made using different telephones (e.g., mobile, landline) from a variety of environments including the street, a home or office, a public place, and inside a vehicle. Transcripts cover 100% of the speech data, and approximately 2% of the speech data was translated into English. Further information about transcription and translation methodologies is contained in the documentation accompanying this release. Pashto-English Language Pack also includes domain annotations, English queries and their relevance annotations. Annotators marked transcripts by domain (e.g., lifestyle, business-and-commerce, sports, education, and so on), by query (simple, conceptual, hybrid) and by their relevance to query search terms. Speech data is presented either as two channel wav or single channel sphere files, predominately in 8kHz A-law format; some wav files are single channel with a sample rate of 48kHz. All text data is UTF-8 encoded. **Updates** No updates at this time.

Creator(s)

Aric Bills

Anne Boyle

Rachael Brunckhorst

Sarra Chouder

Nathaniel Clair

Tom Conners

Cassian Corey

Eyal Dubinski

Corinna Ellis

Paul Gibby

Simon Hammond

Luke Hartwig

Maxime Hubert

Alice Kaiser-Schatzlein

Nicolas Morales

Olivia Medel

Jennifer Melot

Alyssa Mensch

Shelley Paget

Alston Raymer

Frederick Richardson

Distributor(s)

Linguistic Data Consortium

Right Holder(s)

Linguistic Data Consortium