human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Round, Pick #, Player, Position, Nationality, College/junior/club team (league)
###Question: What is the nationality of the player whose college/junior/club team (league) is Seattle Thunderbirds (WHL)?
gpt
SELECT Nationality FROM table WHERE College/junior/club team (league) = Seattle Thunderbirds (WHL)