CREATE TABLE table_name_34 (class VARCHAR2, prom__m_ VARCHAR2, peak VARCHAR2)

Which Class is Peak Sail when it has a Prom larger than 30?
SELECT class FROM table_name_34 WHERE prom__m_ > 30 AND peak = "sail"
SELECT "class" FROM "table_name_34" WHERE "peak" = "sail" AND "prom__m_" > 30