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

### Instruction:
What is the lightweight value with no information model and the flexible value is unknown?

### Inputs:
table_name: table, columns: ['Schemas', 'Flexible', 'Semantic verification', 'Dictionary', 'Information Model', 'Synonyms and homonyms', 'Dialecting', 'Web standard', 'Transformations', 'Lightweight', 'Human readable']

### Response:
SELECT Lightweight FROM table WHERE Information Model = no AND Flexible = unknown