Among the businesses with score that ranges from 70 to 80, list their violation type ID and risk category.
businesses with score that ranges from 70 to 80 refer to business_id where score between 80 and 90;
SELECT DISTINCT T1.violation_type_id, T1.risk_category FROM violations AS T1 INNER JOIN businesses AS T2 ON T1.business_id = T2.business_id INNER JOIN inspections AS T3 ON T2.business_id = T3.business_id WHERE T3.score BETWEEN 70 AND 80