user: Question: Tell me the total number of prom for height less than 615
Columns: ['Peak', 'Height (m)', 'Prom. (m)', 'Class', 'Parent']
Types: ['text', 'real', 'real', 'text', 'text']
Sample row: ['The Cheviot', 815.0, 556.0, 'Marilyn', 'Broad Law']
SQL:

assistant: SELECT COUNT("Prom. (m)") FROM "Table" WHERE "Height (m)" < 615.0;