Table schema:
CREATE TABLE table_name_23 (name VARCHAR, casualties VARCHAR, sunk_by… VARCHAR, date VARCHAR, nationality VARCHAR)

Question: What is the name of the ship sunk on 5 May 1943 from the United Kingdom sunk by an u-266 with 0 casualties?
SQL: SELECT name FROM table_name_23 WHERE date = "5 may 1943" AND nationality = "united kingdom" AND sunk_by… = "u-266" AND casualties = "0"