<|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 dna sequences of the chloroplast and mitochondrial genome of p. tremula w52 are available from genbank (chloroplast: accession number kp861984; mitochondrion: accession number kt337313). the dna sequences of the chloroplast and mitochondrial genome of p. tremula x p. alba 717-1b4 are available via genbank (chloroplast: kt780870; mitochondrion: kt429213. all sanger sequences of the mtdna of 717-1b4 are available via genbank (dbgss library accession number libgss_039210). the sanger sequences of the trnh-psba linker of different populus species are available via genbank (kt970099-kt970111).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>