Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_30 (nationality VARCHAR, previous_team VARCHAR, years_of_nba_experience_ VARCHAR, a_ VARCHAR)
### Question:
Which Nationality has a Previous team of new york knicks, and more than 3 Years of NBA experience?
### Answer:
SELECT nationality FROM table_name_30 WHERE previous_team = "new york knicks" AND years_of_nba_experience_[a_] > 3