ภาษาทางการของประเทศของผู้เล่นจาก Maryland หรือ Duke College คืออะไร?
What are the official languages of the countries of players from Maryland or Duke college?
country = pd.DataFrame(columns=['Official_native_language', 'Country_id']); match_season = pd.DataFrame(columns=['Country', 'College'])
pd.merge(country, match_season, left_on='Country_id', right_on='Country')[['Official_native_language', 'Country']][(match_season['College'] == 'Maryland') | (match_season['College'] == 'Duke')]