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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 crystallographic data have been deposited at the Cambridge Crystallographic Data Centre 
(CCDC) as CCDC 1503812 (3i), 1491566 (3t), 1503813 (3x), 1491568 (5a) and 1491567 (5b) and can be obtained free of charge from the CCDC via www.ccdc.cam.ac.uk/getstructures. WITHIN METHODS: Methods
General. For 1H, 19F and 13C NMR spectra of compounds in this manuscript see Supplementary
Information. Supplementary crystallographic data for this paper can be obtained from the
Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif on quoting
registry nos. CCDC-1503812 for 3i, CCDC-1491566 for 3t, CCDC-1503813 for 3x, CCDC-
1491568 for 5a, CCDC-1491567 for 5b. For details of the synthetic procedures, tables including
detail experimental, see Supplementary Information. <|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>