<|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: the authors confirm that all data underlying the findings are fully available without restriction. the detailed results of the sequential thermal desorption-gas chromatography-mass spectrometry (td-gc-ms) and pyrolysis-gas chromatography-mass spectrometry (py-gc-ms) analyses are in the supporting information file (s1). all skeletal material can be found in the department of archaeology, university of durham uk and requests may be sent to tina jakob (betina.jakob@durham.ac.uk). all microscopic material and reference material can be found in the department of prehistory, universitat autonoma de barcelona, spain and requests may be sent to karen hardy (khardy@icrea.cat).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>