user: Question: What is the mark number when the lane for Rabangaki Nawai when it is greater than 2 and the heat is larger than 4?
Columns: ['Heat', 'Lane', 'Name', 'Country', 'Mark']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 6.0, 'Dwain Chambers', 'United Kingdom', '6.69']
SQL:

assistant: SELECT "Mark" FROM "Table" WHERE "Lane" > 2.0 AND "Heat" > 4.0 AND "Name" = 'Rabangaki Nawai';