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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: Finally , t he biomimetic tetranuclear [ MoFe 3 S 4 ] 2 + and [ Fe 4 S 4 ] 2 + and the MoFep rotein of nitrogenase were studied ( Figure 6C ) . All samples contain Fe II , a nd the resonant excitation into the pre - edge yields two distinct features split by~0.9 - 1.3 eV at their maxima due to the additional 5 Dterm discussed above . Once again , inspection of the D RXES and D XES highlights the ability of 1s3p RXES at the pre - edge region to identify the presence of ferrous iron , which is not possible using the Kb XES spectra alone . Future studies including 1s3p RXES full planes collected with higher resolution instruments may allow for amore rigorous quantification of the changes in electronic structure , e nabling better distinction between the different intermediate states . N evertheless , t hese results demonstrate that even in highly covalent systems , meaningful differences in 3d metal valencypersist in the 1s3p RXES data .<|eot_id|><|start_header_id|>assistant<|end_header_id|>

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