Question: What is the interaction type of the enzyme named 'ALA synthase' and the medicine named 'Aripiprazole'?
SQL: SELECT T1.interaction_type FROM medicine_enzyme_interaction AS T1 JOIN medicine AS T2 ON T1.medicine_id  =  T2.id JOIN enzyme AS T3 ON T1.enzyme_id  =  T3.id WHERE T3.name  =  'ALA synthase' AND T2.name  =  'Aripiprazole'