CREATE TABLE table_8381 ("Pick" FLOAT, "Player" CLOB, "Pos." CLOB, "Nationality" CLOB, "Team" CLOB, "Previous team" CLOB, "NBA years [a ]" CLOB, "Career with the franchise [b ]" CLOB)

What is Nationality, when NBA years [a ] is '1', and when Previous Team is 'Seattle Supersonics'?
SELECT "Nationality" FROM table_8381 WHERE "NBA years [a ]" = '1' AND "Previous team" = 'seattle supersonics'
SELECT "Nationality" FROM "table_8381" WHERE "NBA years [a ]" = '1' AND "Previous team" = 'seattle supersonics'