Match each sign with its meaning and write the correct subcategory for each of themslippery when wet пусто5 пустоcaution high voltage пусто2 пустоdanger first aid station пусто4 пустоemergency head protection must be worn пусто1 пустоmandatory cafeteria пусто6 пустоgeneral information no smoking area пусто3 пустоprohibition