CREATE TABLE table_48325 ("Name" CLOB, "Party" CLOB, "Tenure" CLOB, "Head ( s )  of Government" CLOB, "Ministerial title" CLOB)

What is the head of government for Don Stephen Senanayake?
SELECT "Head(s) of Government" FROM table_48325 WHERE "Name" = 'don stephen senanayake'
SELECT "Head(s) of Government" FROM "table_48325" WHERE "Name" = 'don stephen senanayake'