Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
what was the lowest elevation in april 2006?

### Inputs:
table_name: table, columns: ['Year', 'Summits', 'Country', 'Continent', 'Elevation ft', 'Elevation m']

### Response:
SELECT MIN Elevation ft FROM table WHERE Year = April 2006