SELECT category_id FROM categories WHERE slug = 'n1seminar-dlya-uchiteley-fizicheskoy-kul-tury-mo-g-aleksin-rol-uchitelya-fizicheskoy-kul-tury-v-podgotovke-obuchayuschihsya-k-sdache-normativov-vfsk-gto' LIMIT 0, 1