user: Question: How much is the total value of kau sĕb UNGEGN ?
Columns: ['Value', 'Khmer', 'Word Form', 'UNGEGN', 'ALA-LC', 'Other']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [30.0, '៣០', 'សាមសិប', 'sam săb', 'sām sip', 'sam sep']
SQL:

assistant: SELECT SUM("Value") FROM "Table" WHERE "UNGEGN" = 'kau sĕb';