Question: What is the average price of the orders made by a customer in Germany?
SQL: SELECT AVG(T3.o_totalprice) FROM nation AS T1 INNER JOIN customer AS T2 ON T1.n_nationkey = T2.c_nationkey INNER JOIN orders AS T3 ON T2.c_custkey = T3.o_custkey WHERE T1.n_name = 'GERMANY'