<|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: singh dataset is available at the broad institute cancer program legacy publication resources website: http://www.broadinstitute.org/mpr/publications/projects/prostate_cancer/prostate_normal_n01-n31.cel.tar.gz; http://www.broadinstitute.org/mpr/publications/projects/prostate_cancer/prostate_normal_n32-n62.cel.tar.gz; http://www.broadinstitute.org/mpr/publications/projects/prostate_cancer/prostate_tumor_t01-t30.cel.tar.gz; http://www.broadinstitute.org/mpr/publications/projects/prostate_cancer/prostate_tumor_t31-t62.cel.tar.gz. welsh dataset is available at the genomics institute of the novartis research http://www.stat.cmu.edu/~jiashun/research/software/hcclassification/prostate/gnf_prostate_data_cr61_5974.xls. uma dataset is available at arrayexpress: (http://www.ebi.ac.uk/arrayexpress/experiments/e-geod-6919/) under accession number e-geod-6919. l-2695, l-3044 and l-3289 datasets are available in gene expression omnibus (http://www.ncbi.nlm.nih.gov/geo/) under accession number gse3933.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>