Which organizations are not a parent organization of others? List the organization id.
CREATE TABLE organizations (organization_id VARCHAR, parent_organization_id VARCHAR)
SELECT organization_id FROM organizations EXCEPT SELECT parent_organization_id FROM organizations
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE organizations (organization_id VARCHAR, parent_organization_id VARCHAR) Question: Which organizations are not a parent organization of others? List the organization id. [/INST] SELECT organization_id FROM organizations EXCEPT SELECT parent_organization_id FROM organizations </s>