CREATE TABLE table_39485 ("Name" CLOB, "Pennant number" CLOB, "Ordered" FLOAT, "Builder" CLOB, "Commissioned" CLOB)

Which Builder has a Pennant number of Q149?
SELECT "Builder" FROM table_39485 WHERE "Pennant number" = 'q149'
SELECT "Builder" FROM "table_39485" WHERE "Pennant number" = 'q149'