What was the nationality of a point guard position in 1999-2001?
CREATE TABLE table_50099 (
    "Player" text,
    "Nationality" text,
    "Position" text,
    "Years for Grizzlies" text,
    "School/Club Team" text
)
SELECT "Nationality" FROM table_50099 WHERE "Position" = 'point guard' AND "Years for Grizzlies" = '1999-2001'
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 was the nationality of a point guard position in 1999-2001? ### Input: CREATE TABLE table_50099 (
    "Player" text,
    "Nationality" text,
    "Position" text,
    "Years for Grizzlies" text,
    "School/Club Team" text
) ### Response: SELECT "Nationality" FROM table_50099 WHERE "Position" = 'point guard' AND "Years for Grizzlies" = '1999-2001'