<|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: data have been collected through the public twitter api (https://dev.twitter.com/overview/api). to comply with twitter terms of service, data cannot be publicly shared. interested future researchers may reproduce the experiments by following the procedure described in the paper. anonymized data may be available upon request from dr. emilio ferrara (ferrarae@isi.edu).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>