query: SELECT Nationality ,  COUNT(*) FROM pilot GROUP BY Nationality
question: What are the different nationalities of pilots? Show each nationality and the number of pilots of each nationality.
query_toks: SELECT Nationality , COUNT ( * ) FROM pilot GROUP BY Nationality
query_toks_no_value: select nationality , count ( * ) from pilot group by nationality
question_toks: What are the different nationalities of pilots? Show each nationality and the number of pilots of each nationality.