Find the physician who was trained in the most expensive procedure?
CREATE TABLE trained_in (
    physician VARCHAR,
    treatment VARCHAR
)

CREATE TABLE physician (
    name VARCHAR,
    employeeid VARCHAR
)

CREATE TABLE procedures (
    code VARCHAR,
    cost VARCHAR
)
SELECT T1.name FROM physician AS T1 JOIN trained_in AS T2 ON T1.employeeid = T2.physician JOIN procedures AS T3 ON T3.code = T2.treatment ORDER BY T3.cost DESC LIMIT 1
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Find the physician who was trained in the most expensive procedure? ### Input: CREATE TABLE trained_in (
    physician VARCHAR,
    treatment VARCHAR
)

CREATE TABLE physician (
    name VARCHAR,
    employeeid VARCHAR
)

CREATE TABLE procedures (
    code VARCHAR,
    cost VARCHAR
) ### Response: SELECT T1.name FROM physician AS T1 JOIN trained_in AS T2 ON T1.employeeid = T2.physician JOIN procedures AS T3 ON T3.code = T2.treatment ORDER BY T3.cost DESC LIMIT 1