<|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: data are not publicly available since concrete addresses and households may be identified in the context of a conflicting political situation. access to the field data is available upon request, but some restrictions on its use apply: to preserve anonymity, no information on concrete addresses and places other than barcelona must be made public. the authors and this research should be cited as the source of the data. the authors may request written formal guarantees that these restrictions will be met. to request the data, readers may contact: josé a. noguera (author) departament de sociologia universitat autònoma de barcelona campus de bellaterra - edifici b 08193 - cerdanyola (barcelona) spain jose.noguera@uab.cat; gsadi (group of analytical sociology and institutional design) departament de sociologia universitat autònoma de barcelona campus de bellaterra - edifici b 08193 - cerdanyola (barcelona) spain gsadi@uab.cat; chief of department departament de sociologia universitat autònoma de barcelona campus de bellaterra - edifici b 08193 - cerdanyola (barcelona) spain d.sociologia@uab.cat.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>