Assertion: led's use | /r/CapableOf | take closer look
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text: Using two large research facilities at PSI—the Swiss Light Source SLS and the X-ray free-electron laser SwissFEL—as well as the European Synchrotron Radiation Facility in Grenoble, France, Smolentsev and his collaborators took a closer look at the short-lived excited states of the copper compound.