What is the comissioned for 4 may 1943?
{'header': ['Name', 'Pennant', 'Builder', 'Laid Down', 'Launched', 'Commissioned', 'Fate'], 'page_title': '', 'page_id': '', 'types': ['text', 'text', 'text', 'text', 'text', 'text', 'text'], 'id': '1-1220125-4', 'section_title': '', 'caption': '', 'rows': [['Amethyst', 'U16', 'Alex. Stephen , Linthouse', '25 March 1942', '7 May 1943', '2 November 1943', 'Broken up 18 January 1957.'], ['Hind', 'U39', 'Denny, Dunbarton', '31 August 1942', '30 September 1943', '11 April 1944', 'Broken up 10 December 1958.'], ['Alacrity', 'U60', 'Denny, Dunbarton', '4 May 1943', '1 September 1944', '13 April 1945', 'Broken up 15 September 1956.'], ['Opossum', 'U33', 'Denny, Dunbarton', '28 July 1943', '30 November 1944', '16 June 1945', 'Broken up 26 April 1960.'], ['Modeste', 'U42', 'Chatham Dockyard', '15 February 1943', '29 January 1944', '3 September 1945', 'Broken up 11 March 1961.']], 'name': 'table_1220125_4'}