user: Question: What is the relative height of scotland with ben vorlich as parent?
Columns: ['Peak', 'Absolute height (m)', 'Relative height (m)', 'Parent', 'Country']
Types: ['text', 'real', 'real', 'text', 'text']
Sample row: ['Mullach Coire Mhic Fhearchair', 1019.0, 595.0, 'Sgùrr Mòr', 'Scotland']
SQL:

assistant: SELECT "Relative height (m)" FROM "Table" WHERE "Country" = 'scotland' AND "Parent" = 'ben vorlich';