<|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: Detailed MTR data were provided by the Hong Kong MTR Corporation . The data , from 1 January to 31 March 2020 , included masked card/ ticket ID ( the ID after masked and processed , not the original ID on cards ) , entry / exit station , entry / exit time , ticket type ( smartcard / ticket ) and card type of each passenger . The MTR system has five card types : adult , child ( ages 3 - 11 years ) , student ( ages 12 - 25 years and enrolled in a primary / middle / high school , university or institution of higher education ) , senior ( ages 65 years and above ) and others ( e.g. , disabled , MTR staff ) . The MTR data excluded airport express lines and the light rail systems .<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>