CREATE TABLE table_49102 ("Year" CLOB, "League Position" CLOB, "League" CLOB, "Domestic Cup" CLOB, "Cup Position" CLOB)

What year had a domestic cup of singapore cup?
SELECT "Year" FROM table_49102 WHERE "Domestic Cup" = 'singapore cup'
SELECT "Year" FROM "table_49102" WHERE "Domestic Cup" = 'singapore cup'