CREATE TABLE table_39804 ("Airline" CLOB, "ICAO" CLOB, "IATA" CLOB, "Callsign" CLOB, "Commenced operations" FLOAT, "Fleet size" FLOAT, "Headquarters" CLOB)

Which ICAO has a Fleet size of 2?
SELECT "ICAO" FROM table_39804 WHERE "Fleet size" = '2'
SELECT "ICAO" FROM "table_39804" WHERE "Fleet size" = '2'