CREATE TABLE game (stadium_id NUMBER, id NUMBER, season NUMBER, date CLOB, home_team CLOB, away_team CLOB, score CLOB, competition CLOB)
CREATE TABLE stadium (id NUMBER, name CLOB, home_games NUMBER, average_attendance NUMBER, total_attendance NUMBER, capacity_percentage NUMBER)
CREATE TABLE injury_accident (game_id NUMBER, id NUMBER, player CLOB, injury CLOB, number_of_matches CLOB, source CLOB)

How many distinct kinds of injuries happened after season 2010?
SELECT COUNT(DISTINCT T1.injury) FROM injury_accident AS T1 JOIN game AS T2 ON T1.game_id = T2.id WHERE T2.season > 2010
SELECT COUNT(DISTINCT "T1"."injury") FROM "injury_accident" "T1" JOIN "game" "T2" ON "T1"."game_id" = "T2"."id" AND "T2"."season" > 2010