. _:vb51067055 . _:vb51067055 . _:vb51066539 . _:vb51066537 _:vb51066538 . . _:vb51065732 . . . _:vb51067056 . "The start date and time of the event or item (in ISO 8601 date format)."@en . . . _:vb51066537 . _:vb51065733 . _:vb51067057 . _:vb51065732 . _:vb51067055 _:vb51067056 . _:vb51065733 . _:vb51067057 . _:vb51065733 _:vb51067055 . _:vb51067057 . _:vb51067056 _:vb51067057 . _:vb51066539 . _:vb51066539 . . _:vb51066538 . _:vb51065732 . _:vb51066538 _:vb51066539 . . _:vb51066537 . . _:vb51065732 _:vb51066537 . _:vb51065733 . "Start Date"@en . . _:vb51066538 . _:vb51067056 .