sentences:  After participating in salvage operations, "Grebe" returned to Boston, Massachusetts, on 22 July to resume radio compass station calibration and other duties.From there she made a round trip to Norfolk, Virginia, Guantanamo Bay, Cuba, and the Panama Canal Zone which occupied her from 1 December 1921 until 18 March 1922, when she returned to Portsmouth.There she decommissioned 12 May 1922.