What is the League Goals when the FA Cup Goals are 0, position is mf, League Cup Apps of 0, and name is Ben Thornley?
CREATE TABLE table_59490 (
    "Name" text,
    "Position" text,
    "League Apps" text,
    "League Goals" real,
    "FA Cup Apps" text,
    "FA Cup Goals" real,
    "League Cup Apps" text,
    "League Cup Goals" real,
    "Total Apps" text,
    "Total Goals" real
)
SELECT AVG("League Goals") FROM table_59490 WHERE "FA Cup Goals" = '0' AND "Position" = 'mf' AND "League Cup Apps" = '0' AND "Name" = 'ben thornley'
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: What is the League Goals when the FA Cup Goals are 0, position is mf, League Cup Apps of 0, and name is Ben Thornley? ### Input: CREATE TABLE table_59490 (
    "Name" text,
    "Position" text,
    "League Apps" text,
    "League Goals" real,
    "FA Cup Apps" text,
    "FA Cup Goals" real,
    "League Cup Apps" text,
    "League Cup Goals" real,
    "Total Apps" text,
    "Total Goals" real
) ### Response: SELECT AVG("League Goals") FROM table_59490 WHERE "FA Cup Goals" = '0' AND "Position" = 'mf' AND "League Cup Apps" = '0' AND "Name" = 'ben thornley'