text: CREATE TABLE medicine_enzyme_interaction (interaction_type VARCHAR) -- What is the most common interaction type between enzymes and medicine? And how many are there? SELECT interaction_type, COUNT(*) FROM medicine_enzyme_interaction GROUP BY interaction_type ORDER BY COUNT(*) DESC LIMIT 1 CREATE TABLE medicine (FDA_approved VARCHAR) -- How many medicines have the FDA approval status 'No' ? SELECT COUNT(*) FROM medicine WHERE FDA_approved = 'No' CREATE TABLE medicine_enzyme_interaction (id VARCHAR, enzyme_id VARCHAR); CREATE TABLE enzyme (id VARCHAR, enzyme_id VARCHAR) -- How many enzymes do not have any interactions? SELECT COUNT(*) FROM enzyme WHERE NOT id IN (SELECT enzyme_id FROM medicine_enzyme_interaction) CREATE TABLE medicine (id VARCHAR, trade_name VARCHAR); CREATE TABLE medicine_enzyme_interaction (medicine_id VARCHAR) -- What is the id and trade name of the medicines can interact with at least 3 enzymes? SELECT T1.id, T1.trade_name FROM medicine AS T1 JOIN medicine_enzyme_interaction AS T2 ON T2.medicine_id = T1.id GROUP BY T1.id HAVING COUNT(*) >= 3 CREATE TABLE enzyme (name VARCHAR, location VARCHAR, product VARCHAR, id VARCHAR); CREATE TABLE medicine_enzyme_interaction (enzyme_id VARCHAR, interaction_type VARCHAR) -- What are the distinct name, location and products of the enzymes which has any 'inhibitor' interaction? SELECT DISTINCT T1.name, T1.location, T1.product FROM enzyme AS T1 JOIN medicine_enzyme_interaction AS T2 ON T2.enzyme_id = T1.id WHERE T2.interaction_type = 'inhibitor'