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

### Instruction:
What is the sum of Total Regions that have the Year 1954, and a Nebo greater than 447?

### Inputs:
table_name: table, columns: ['Year', 'Total Region', 'Belyando', 'Broadsound', 'Nebo']

### Response:
SELECT SUM Total Region FROM table WHERE Year = 1954 AND Nebo > 447