CREATE TABLE table_58331 ("Aircraft" CLOB, "Origin" CLOB, "Role" CLOB, "Registration" CLOB, "Number" CLOB)

What is the role of the aircraft that has a registration of s5-hpb?
SELECT "Role" FROM table_58331 WHERE "Registration" = 's5-hpb'
SELECT "Role" FROM "table_58331" WHERE "Registration" = 's5-hpb'