Question: What is the first year where the assassination attempt was at Martyrs' Mausoleum, Rangoon, Burma?
SQL: SELECT MIN("Year") FROM "1-251272-4" WHERE "Location" = 'Martyrs'' Mausoleum, Rangoon, Burma';

Question: Where was the attempt on the Prime Minister of Sri Lanka's life made?
SQL: SELECT "Location" FROM "1-251272-4" WHERE "Title at the Time" = 'Prime Minister of Sri Lanka';