CREATE TABLE table_52938 ("Peak" CLOB, "Height  ( m ) " FLOAT, "Prom.  ( m ) " FLOAT, "Class" CLOB, "Parent" CLOB)

Tell me the lowest prom for class of hewitt and peak of cushat law and height more than 615
SELECT MIN("Prom. (m)") FROM table_52938 WHERE "Class" = 'hewitt' AND "Peak" = 'cushat law' AND "Height (m)" > '615'
SELECT MIN("Prom. (m)") FROM "table_52938" WHERE "Class" = 'hewitt' AND "Height (m)" > '615' AND "Peak" = 'cushat law'