SELECT category_id FROM categories WHERE slug = '158831-n1kommentariy-zamestitelya-nachal-nika-glavnogo-upravleniya-mchs-rossii-po-smolenskoy-oblasti-po-zaschite-monitoringu-i-preduprezhdeniyu-chrezvychaynyh-situaciy-po-itogam-provedeniya-mesyachnika-grazhdanskoy-oborony' LIMIT 0, 1