<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: all data of reith lectures are freely available from the bbc: http://www.bbc.co.uk/radio4/features/the-reith-lectures/transcripts/2011/. the switchboard-i corpus needs to be bought from linguistic data consortium, https://catalog.ldc.upenn.edu/ldc98s71. the 1997 english broadcast new (bn) hub4 corpus needs to be bought from linguistic data consortium, https://catalog.ldc.upenn.edu/ldc98s71.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>