<|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 relevant data are within the references section of the manuscript or are owned by informart, a market research agency. interested researchers may contact http://www.sciencedirect.com/science/article/pii/030440769090013j for access to data from informat.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>