<|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: Proposition 30. There are CQs Q and sets of IDs C such that NQI(Q, C, S, V) can not be described by a first-order query over V. More generally, there are CQs Q and sets of IDs C such that NQI(Q, C, S, C, V) is PTime-hard in **data** complexity (that is, as V varies over instances).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>