CREATE TABLE table_38860 ("Year" CLOB, "Theme" CLOB, "Host city" CLOB, "Venue" CLOB, "Hosts" CLOB)

What is the host city of the Singapore Indoor Stadium venue and a Valentine's Day theme?
SELECT "Host city" FROM table_38860 WHERE "Venue" = 'singapore indoor stadium' AND "Theme" = 'valentine''s day'
SELECT "Host city" FROM "table_38860" WHERE "Theme" = 'valentine''s day' AND "Venue" = 'singapore indoor stadium'