user: ### NOW ANSWER:
Question: What's Sara Isakovič's lane number that had a heat of 3?
Columns: ['Heat', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [3.0, 2.0, 'Liu Zige', 'China', '2:06.46']
SQL:

assistant: SELECT SUM("Lane") FROM "Table" WHERE "Heat" = 3.0 AND "Name" = 'Sara Isakovič';